521304520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{491}}^1$

素因数の和:659

約数の個数: 128

約数和(自身を含む): 1360281600

約数和(自身を除く): 838977080

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 127, 152, 190, 209, 220, 254, 380, 418, 440, 491, 508, 635, 760, 836, 982, 1016, 1045, 1270, 1397, 1672, 1964, 2090, 2413, 2455, 2540, 2794, 3928, 4180, 4826, 4910, 5080, 5401, 5588, 6985, 8360, 9329, 9652, 9820, 10802, 11176, 12065, 13970, 18658, 19304, 19640, 21604, 24130, 26543, 27005, 27940, 37316, 43208, 46645, 48260, 53086, 54010, 55880, 62357, 74632, 93290, 96520, 102619, 106172, 108020, 124714, 132715, 186580, 205238, 212344, 216040, 249428, 265430, 311785, 373160, 410476, 498856, 513095, 530860, 623570, 685927, 820952, 1026190, 1061720, 1184783, 1247140, 1371854, 2052380, 2369566, 2494280, 2743708, 3429635, 4104760, 4739132, 5487416, 5923915, 6859270, 9478264, 11847830, 13032613, 13718540, 23695660, 26065226, 27437080, 47391320, 52130452, 65163065, 104260904, 130326130, 260652260, 521304520]

約数ペア:

[(1, 521304520), (2, 260652260), (4, 130326130), (5, 104260904), (8, 65163065), (10, 52130452), (11, 47391320), (19, 27437080), (20, 26065226), (22, 23695660), (38, 13718540), (40, 13032613), (44, 11847830), (55, 9478264), (76, 6859270), (88, 5923915), (95, 5487416), (110, 4739132), (127, 4104760), (152, 3429635), (190, 2743708), (209, 2494280), (220, 2369566), (254, 2052380), (380, 1371854), (418, 1247140), (440, 1184783), (491, 1061720), (508, 1026190), (635, 820952), (760, 685927), (836, 623570), (982, 530860), (1016, 513095), (1045, 498856), (1270, 410476), (1397, 373160), (1672, 311785), (1964, 265430), (2090, 249428), (2413, 216040), (2455, 212344), (2540, 205238), (2794, 186580), (3928, 132715), (4180, 124714), (4826, 108020), (4910, 106172), (5080, 102619), (5401, 96520), (5588, 93290), (6985, 74632), (8360, 62357), (9329, 55880), (9652, 54010), (9820, 53086), (10802, 48260), (11176, 46645), (12065, 43208), (13970, 37316), (18658, 27940), (19304, 27005), (19640, 26543), (21604, 24130)]