20518245160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3856813}}^1$

素因数の和:3856850

約数の個数: 64

約数和(自身を含む): 55538121600

約数和(自身を除く): 35019876440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 3856813, 7713626, 15427252, 19284065, 26997691, 30854504, 38568130, 53995382, 73279447, 77136260, 107990764, 134988455, 146558894, 154272520, 215981528, 269976910, 293117788, 366397235, 512956129, 539953820, 586235576, 732794470, 1025912258, 1079907640, 1465588940, 2051824516, 2564780645, 2931177880, 4103649032, 5129561290, 10259122580, 20518245160]

約数ペア:

[(1, 20518245160), (2, 10259122580), (4, 5129561290), (5, 4103649032), (7, 2931177880), (8, 2564780645), (10, 2051824516), (14, 1465588940), (19, 1079907640), (20, 1025912258), (28, 732794470), (35, 586235576), (38, 539953820), (40, 512956129), (56, 366397235), (70, 293117788), (76, 269976910), (95, 215981528), (133, 154272520), (140, 146558894), (152, 134988455), (190, 107990764), (266, 77136260), (280, 73279447), (380, 53995382), (532, 38568130), (665, 30854504), (760, 26997691), (1064, 19284065), (1330, 15427252), (2660, 7713626), (5320, 3856813)]