20104351640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{7001}}^1$

素因数の和:7173

約数の個数: 128

約数和(自身を含む): 49547272320

約数和(自身を除く): 29442920680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 41, 68, 82, 85, 103, 136, 164, 170, 205, 206, 328, 340, 410, 412, 515, 680, 697, 820, 824, 1030, 1394, 1640, 1751, 2060, 2788, 3485, 3502, 4120, 4223, 5576, 6970, 7001, 7004, 8446, 8755, 13940, 14002, 14008, 16892, 17510, 21115, 27880, 28004, 33784, 35005, 35020, 42230, 56008, 70010, 70040, 71791, 84460, 119017, 140020, 143582, 168920, 238034, 280040, 287041, 287164, 358955, 476068, 574082, 574328, 595085, 717910, 721103, 952136, 1148164, 1190170, 1435205, 1435820, 1442206, 2296328, 2380340, 2870410, 2871640, 2884412, 3605515, 4760680, 4879697, 5740820, 5768824, 7211030, 9759394, 11481640, 12258751, 14422060, 19518788, 24398485, 24517502, 28844120, 29565223, 39037576, 48796970, 49035004, 59130446, 61293755, 97593940, 98070008, 118260892, 122587510, 147826115, 195187880, 236521784, 245175020, 295652230, 490350040, 502608791, 591304460, 1005217582, 1182608920, 2010435164, 2513043955, 4020870328, 5026087910, 10052175820, 20104351640]

約数ペア:

[(1, 20104351640), (2, 10052175820), (4, 5026087910), (5, 4020870328), (8, 2513043955), (10, 2010435164), (17, 1182608920), (20, 1005217582), (34, 591304460), (40, 502608791), (41, 490350040), (68, 295652230), (82, 245175020), (85, 236521784), (103, 195187880), (136, 147826115), (164, 122587510), (170, 118260892), (205, 98070008), (206, 97593940), (328, 61293755), (340, 59130446), (410, 49035004), (412, 48796970), (515, 39037576), (680, 29565223), (697, 28844120), (820, 24517502), (824, 24398485), (1030, 19518788), (1394, 14422060), (1640, 12258751), (1751, 11481640), (2060, 9759394), (2788, 7211030), (3485, 5768824), (3502, 5740820), (4120, 4879697), (4223, 4760680), (5576, 3605515), (6970, 2884412), (7001, 2871640), (7004, 2870410), (8446, 2380340), (8755, 2296328), (13940, 1442206), (14002, 1435820), (14008, 1435205), (16892, 1190170), (17510, 1148164), (21115, 952136), (27880, 721103), (28004, 717910), (33784, 595085), (35005, 574328), (35020, 574082), (42230, 476068), (56008, 358955), (70010, 287164), (70040, 287041), (71791, 280040), (84460, 238034), (119017, 168920), (140020, 143582)]