20793797680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1\times {\mathrm{307}}^1$

素因数の和:755

約数の個数: 160

約数和(自身を含む): 51179724288

約数和(自身を除く): 30385926608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 131, 184, 230, 262, 281, 307, 368, 460, 524, 562, 614, 655, 920, 1048, 1124, 1228, 1310, 1405, 1535, 1840, 2096, 2248, 2456, 2620, 2810, 3013, 3070, 4496, 4912, 5240, 5620, 6026, 6140, 6463, 7061, 10480, 11240, 12052, 12280, 12926, 14122, 15065, 22480, 24104, 24560, 25852, 28244, 30130, 32315, 35305, 36811, 40217, 48208, 51704, 56488, 60260, 64630, 70610, 73622, 80434, 86267, 103408, 112976, 120520, 129260, 141220, 147244, 160868, 172534, 184055, 201085, 241040, 258520, 282440, 294488, 321736, 345068, 368110, 402170, 431335, 517040, 564880, 588976, 643472, 690136, 736220, 804340, 846653, 862670, 924991, 1380272, 1472440, 1608680, 1693306, 1725340, 1849982, 1984141, 2944880, 3217360, 3386612, 3450680, 3699964, 3968282, 4233265, 4624955, 6773224, 6901360, 7399928, 7936564, 8466530, 9249910, 9920705, 11300977, 13546448, 14799856, 15873128, 16933060, 18499820, 19841410, 22601954, 31746256, 33866120, 36999640, 39682820, 45203908, 56504885, 67732240, 73999280, 79365640, 90407816, 113009770, 158731280, 180815632, 226019540, 259922471, 452039080, 519844942, 904078160, 1039689884, 1299612355, 2079379768, 2599224710, 4158759536, 5198449420, 10396898840, 20793797680]

約数ペア:

[(1, 20793797680), (2, 10396898840), (4, 5198449420), (5, 4158759536), (8, 2599224710), (10, 2079379768), (16, 1299612355), (20, 1039689884), (23, 904078160), (40, 519844942), (46, 452039080), (80, 259922471), (92, 226019540), (115, 180815632), (131, 158731280), (184, 113009770), (230, 90407816), (262, 79365640), (281, 73999280), (307, 67732240), (368, 56504885), (460, 45203908), (524, 39682820), (562, 36999640), (614, 33866120), (655, 31746256), (920, 22601954), (1048, 19841410), (1124, 18499820), (1228, 16933060), (1310, 15873128), (1405, 14799856), (1535, 13546448), (1840, 11300977), (2096, 9920705), (2248, 9249910), (2456, 8466530), (2620, 7936564), (2810, 7399928), (3013, 6901360), (3070, 6773224), (4496, 4624955), (4912, 4233265), (5240, 3968282), (5620, 3699964), (6026, 3450680), (6140, 3386612), (6463, 3217360), (7061, 2944880), (10480, 1984141), (11240, 1849982), (12052, 1725340), (12280, 1693306), (12926, 1608680), (14122, 1472440), (15065, 1380272), (22480, 924991), (24104, 862670), (24560, 846653), (25852, 804340), (28244, 736220), (30130, 690136), (32315, 643472), (35305, 588976), (36811, 564880), (40217, 517040), (48208, 431335), (51704, 402170), (56488, 368110), (60260, 345068), (64630, 321736), (70610, 294488), (73622, 282440), (80434, 258520), (86267, 241040), (103408, 201085), (112976, 184055), (120520, 172534), (129260, 160868), (141220, 147244)]