201621160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20407}}^1$

素因数の和:20450

約数の個数: 64

約数和(自身を含む): 514281600

約数和(自身を除く): 312660440

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 20407, 40814, 81628, 102035, 163256, 204070, 265291, 387733, 408140, 530582, 775466, 816280, 1061164, 1326455, 1550932, 1938665, 2122328, 2652910, 3101864, 3877330, 5040529, 5305820, 7754660, 10081058, 10611640, 15509320, 20162116, 25202645, 40324232, 50405290, 100810580, 201621160]

約数ペア:

[(1, 201621160), (2, 100810580), (4, 50405290), (5, 40324232), (8, 25202645), (10, 20162116), (13, 15509320), (19, 10611640), (20, 10081058), (26, 7754660), (38, 5305820), (40, 5040529), (52, 3877330), (65, 3101864), (76, 2652910), (95, 2122328), (104, 1938665), (130, 1550932), (152, 1326455), (190, 1061164), (247, 816280), (260, 775466), (380, 530582), (494, 408140), (520, 387733), (760, 265291), (988, 204070), (1235, 163256), (1976, 102035), (2470, 81628), (4940, 40814), (9880, 20407)]