212157120

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:399

約数の個数: 224

約数和(自身を含む): 778922496

約数和(自身を除く): 566765376

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 131, 140, 160, 168, 192, 210, 224, 240, 241, 262, 280, 320, 336, 393, 420, 448, 480, 482, 524, 560, 655, 672, 723, 786, 840, 917, 960, 964, 1048, 1120, 1205, 1310, 1344, 1446, 1572, 1680, 1687, 1834, 1928, 1965, 2096, 2240, 2410, 2620, 2751, 2892, 3144, 3360, 3374, 3615, 3668, 3856, 3930, 4192, 4585, 4820, 5061, 5240, 5502, 5784, 6288, 6720, 6748, 7230, 7336, 7712, 7860, 8384, 8435, 9170, 9640, 10122, 10480, 11004, 11568, 12576, 13496, 13755, 14460, 14672, 15424, 15720, 16870, 18340, 19280, 20244, 20960, 22008, 23136, 25152, 25305, 26992, 27510, 28920, 29344, 31440, 31571, 33740, 36680, 38560, 40488, 41920, 44016, 46272, 50610, 53984, 55020, 57840, 58688, 62880, 63142, 67480, 73360, 77120, 80976, 88032, 94713, 101220, 107968, 110040, 115680, 125760, 126284, 134960, 146720, 157855, 161952, 176064, 189426, 202440, 220080, 220997, 231360, 252568, 269920, 293440, 315710, 323904, 378852, 404880, 440160, 441994, 473565, 505136, 539840, 631420, 662991, 757704, 809760, 880320, 883988, 947130, 1010272, 1104985, 1262840, 1325982, 1515408, 1619520, 1767976, 1894260, 2020544, 2209970, 2525680, 2651964, 3030816, 3314955, 3535952, 3788520, 4419940, 5051360, 5303928, 6061632, 6629910, 7071904, 7577040, 8839880, 10102720, 10607856, 13259820, 14143808, 15154080, 17679760, 21215712, 26519640, 30308160, 35359520, 42431424, 53039280, 70719040, 106078560, 212157120]

約数ペア:

[(1, 212157120), (2, 106078560), (3, 70719040), (4, 53039280), (5, 42431424), (6, 35359520), (7, 30308160), (8, 26519640), (10, 21215712), (12, 17679760), (14, 15154080), (15, 14143808), (16, 13259820), (20, 10607856), (21, 10102720), (24, 8839880), (28, 7577040), (30, 7071904), (32, 6629910), (35, 6061632), (40, 5303928), (42, 5051360), (48, 4419940), (56, 3788520), (60, 3535952), (64, 3314955), (70, 3030816), (80, 2651964), (84, 2525680), (96, 2209970), (105, 2020544), (112, 1894260), (120, 1767976), (131, 1619520), (140, 1515408), (160, 1325982), (168, 1262840), (192, 1104985), (210, 1010272), (224, 947130), (240, 883988), (241, 880320), (262, 809760), (280, 757704), (320, 662991), (336, 631420), (393, 539840), (420, 505136), (448, 473565), (480, 441994), (482, 440160), (524, 404880), (560, 378852), (655, 323904), (672, 315710), (723, 293440), (786, 269920), (840, 252568), (917, 231360), (960, 220997), (964, 220080), (1048, 202440), (1120, 189426), (1205, 176064), (1310, 161952), (1344, 157855), (1446, 146720), (1572, 134960), (1680, 126284), (1687, 125760), (1834, 115680), (1928, 110040), (1965, 107968), (2096, 101220), (2240, 94713), (2410, 88032), (2620, 80976), (2751, 77120), (2892, 73360), (3144, 67480), (3360, 63142), (3374, 62880), (3615, 58688), (3668, 57840), (3856, 55020), (3930, 53984), (4192, 50610), (4585, 46272), (4820, 44016), (5061, 41920), (5240, 40488), (5502, 38560), (5784, 36680), (6288, 33740), (6720, 31571), (6748, 31440), (7230, 29344), (7336, 28920), (7712, 27510), (7860, 26992), (8384, 25305), (8435, 25152), (9170, 23136), (9640, 22008), (10122, 20960), (10480, 20244), (11004, 19280), (11568, 18340), (12576, 16870), (13496, 15720), (13755, 15424), (14460, 14672)]