155005880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{63527}}^1$

素因数の和:63599

約数の個数: 32

約数和(自身を含む): 354486240

約数和(自身を除く): 199480360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 63527, 127054, 254108, 317635, 508216, 635270, 1270540, 2541080, 3875147, 7750294, 15500588, 19375735, 31001176, 38751470, 77502940, 155005880]

約数ペア:

[(1, 155005880), (2, 77502940), (4, 38751470), (5, 31001176), (8, 19375735), (10, 15500588), (20, 7750294), (40, 3875147), (61, 2541080), (122, 1270540), (244, 635270), (305, 508216), (488, 317635), (610, 254108), (1220, 127054), (2440, 63527)]