201389960

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{631}}^1$

素因数の和:822

約数の個数: 64

約数和(自身を含む): 464140800

約数和(自身を除く): 262750840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 101, 158, 202, 316, 395, 404, 505, 631, 632, 790, 808, 1010, 1262, 1580, 2020, 2524, 3155, 3160, 4040, 5048, 6310, 7979, 12620, 15958, 25240, 31916, 39895, 49849, 63731, 63832, 79790, 99698, 127462, 159580, 199396, 249245, 254924, 318655, 319160, 398792, 498490, 509848, 637310, 996980, 1274620, 1993960, 2549240, 5034749, 10069498, 20138996, 25173745, 40277992, 50347490, 100694980, 201389960]

約数ペア:

[(1, 201389960), (2, 100694980), (4, 50347490), (5, 40277992), (8, 25173745), (10, 20138996), (20, 10069498), (40, 5034749), (79, 2549240), (101, 1993960), (158, 1274620), (202, 996980), (316, 637310), (395, 509848), (404, 498490), (505, 398792), (631, 319160), (632, 318655), (790, 254924), (808, 249245), (1010, 199396), (1262, 159580), (1580, 127462), (2020, 99698), (2524, 79790), (3155, 63832), (3160, 63731), (4040, 49849), (5048, 39895), (6310, 31916), (7979, 25240), (12620, 15958)]