12997160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 32313600

約数和(自身を除く): 19316440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 271, 436, 440, 542, 545, 872, 1084, 1090, 1199, 1355, 2168, 2180, 2398, 2710, 2981, 4360, 4796, 5420, 5962, 5995, 9592, 10840, 11924, 11990, 14905, 23848, 23980, 29539, 29810, 47960, 59078, 59620, 118156, 119240, 147695, 236312, 295390, 324929, 590780, 649858, 1181560, 1299716, 1624645, 2599432, 3249290, 6498580, 12997160]

約数ペア:

[(1, 12997160), (2, 6498580), (4, 3249290), (5, 2599432), (8, 1624645), (10, 1299716), (11, 1181560), (20, 649858), (22, 590780), (40, 324929), (44, 295390), (55, 236312), (88, 147695), (109, 119240), (110, 118156), (218, 59620), (220, 59078), (271, 47960), (436, 29810), (440, 29539), (542, 23980), (545, 23848), (872, 14905), (1084, 11990), (1090, 11924), (1199, 10840), (1355, 9592), (2168, 5995), (2180, 5962), (2398, 5420), (2710, 4796), (2981, 4360)]