1255990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:168

約数の個数: 32

約数和(自身を含む): 2410560

約数和(自身を除く): 1154570

約数列:

[1, 2, 5, 10, 29, 58, 61, 71, 122, 142, 145, 290, 305, 355, 610, 710, 1769, 2059, 3538, 4118, 4331, 8662, 8845, 10295, 17690, 20590, 21655, 43310, 125599, 251198, 627995, 1255990]

約数ペア:

[(1, 1255990), (2, 627995), (5, 251198), (10, 125599), (29, 43310), (58, 21655), (61, 20590), (71, 17690), (122, 10295), (142, 8845), (145, 8662), (290, 4331), (305, 4118), (355, 3538), (610, 2059), (710, 1769)]