400400520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:244

約数の個数: 256

約数和(自身を含む): 1362493440

約数和(自身を除く): 962092920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 43, 47, 52, 60, 65, 78, 86, 94, 104, 120, 127, 129, 130, 141, 156, 172, 188, 195, 215, 235, 254, 258, 260, 282, 312, 344, 376, 381, 390, 430, 470, 508, 516, 520, 559, 564, 611, 635, 645, 705, 762, 780, 860, 940, 1016, 1032, 1118, 1128, 1222, 1270, 1290, 1410, 1524, 1560, 1651, 1677, 1720, 1833, 1880, 1905, 2021, 2236, 2444, 2540, 2580, 2795, 2820, 3048, 3055, 3302, 3354, 3666, 3810, 4042, 4472, 4888, 4953, 5080, 5160, 5461, 5590, 5640, 5969, 6063, 6110, 6604, 6708, 7332, 7620, 8084, 8255, 8385, 9165, 9906, 10105, 10922, 11180, 11938, 12126, 12220, 13208, 13416, 14664, 15240, 16168, 16383, 16510, 16770, 17907, 18330, 19812, 20210, 21844, 22360, 23876, 24252, 24440, 24765, 26273, 27305, 29845, 30315, 32766, 33020, 33540, 35814, 36660, 39624, 40420, 43688, 47752, 48504, 49530, 52546, 54610, 59690, 60630, 65532, 66040, 67080, 70993, 71628, 73320, 77597, 78819, 80840, 81915, 89535, 99060, 105092, 109220, 119380, 121260, 131064, 131365, 141986, 143256, 155194, 157638, 163830, 179070, 198120, 210184, 212979, 218440, 232791, 238760, 242520, 256667, 262730, 283972, 310388, 315276, 327660, 354965, 358140, 387985, 394095, 425958, 465582, 513334, 525460, 567944, 620776, 630552, 655320, 709930, 716280, 770001, 775970, 788190, 851916, 931164, 1026668, 1050920, 1064895, 1163955, 1283335, 1419860, 1540002, 1551940, 1576380, 1703832, 1862328, 2053336, 2129790, 2327910, 2566670, 2839720, 3080004, 3103880, 3152760, 3336671, 3850005, 4259580, 4655820, 5133340, 6160008, 6673342, 7700010, 8519160, 9311640, 10010013, 10266680, 13346684, 15400020, 16683355, 20020026, 26693368, 30800040, 33366710, 40040052, 50050065, 66733420, 80080104, 100100130, 133466840, 200200260, 400400520]

約数ペア:

[(1, 400400520), (2, 200200260), (3, 133466840), (4, 100100130), (5, 80080104), (6, 66733420), (8, 50050065), (10, 40040052), (12, 33366710), (13, 30800040), (15, 26693368), (20, 20020026), (24, 16683355), (26, 15400020), (30, 13346684), (39, 10266680), (40, 10010013), (43, 9311640), (47, 8519160), (52, 7700010), (60, 6673342), (65, 6160008), (78, 5133340), (86, 4655820), (94, 4259580), (104, 3850005), (120, 3336671), (127, 3152760), (129, 3103880), (130, 3080004), (141, 2839720), (156, 2566670), (172, 2327910), (188, 2129790), (195, 2053336), (215, 1862328), (235, 1703832), (254, 1576380), (258, 1551940), (260, 1540002), (282, 1419860), (312, 1283335), (344, 1163955), (376, 1064895), (381, 1050920), (390, 1026668), (430, 931164), (470, 851916), (508, 788190), (516, 775970), (520, 770001), (559, 716280), (564, 709930), (611, 655320), (635, 630552), (645, 620776), (705, 567944), (762, 525460), (780, 513334), (860, 465582), (940, 425958), (1016, 394095), (1032, 387985), (1118, 358140), (1128, 354965), (1222, 327660), (1270, 315276), (1290, 310388), (1410, 283972), (1524, 262730), (1560, 256667), (1651, 242520), (1677, 238760), (1720, 232791), (1833, 218440), (1880, 212979), (1905, 210184), (2021, 198120), (2236, 179070), (2444, 163830), (2540, 157638), (2580, 155194), (2795, 143256), (2820, 141986), (3048, 131365), (3055, 131064), (3302, 121260), (3354, 119380), (3666, 109220), (3810, 105092), (4042, 99060), (4472, 89535), (4888, 81915), (4953, 80840), (5080, 78819), (5160, 77597), (5461, 73320), (5590, 71628), (5640, 70993), (5969, 67080), (6063, 66040), (6110, 65532), (6604, 60630), (6708, 59690), (7332, 54610), (7620, 52546), (8084, 49530), (8255, 48504), (8385, 47752), (9165, 43688), (9906, 40420), (10105, 39624), (10922, 36660), (11180, 35814), (11938, 33540), (12126, 33020), (12220, 32766), (13208, 30315), (13416, 29845), (14664, 27305), (15240, 26273), (16168, 24765), (16383, 24440), (16510, 24252), (16770, 23876), (17907, 22360), (18330, 21844), (19812, 20210)]