70789780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{659}}^1$

素因数の和:840

約数の個数: 48

約数和(自身を含む): 153679680

約数和(自身を除く): 82889900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 131, 164, 205, 262, 410, 524, 655, 659, 820, 1310, 1318, 2620, 2636, 3295, 5371, 6590, 10742, 13180, 21484, 26855, 27019, 53710, 54038, 86329, 107420, 108076, 135095, 172658, 270190, 345316, 431645, 540380, 863290, 1726580, 3539489, 7078978, 14157956, 17697445, 35394890, 70789780]

約数ペア:

[(1, 70789780), (2, 35394890), (4, 17697445), (5, 14157956), (10, 7078978), (20, 3539489), (41, 1726580), (82, 863290), (131, 540380), (164, 431645), (205, 345316), (262, 270190), (410, 172658), (524, 135095), (655, 108076), (659, 107420), (820, 86329), (1310, 54038), (1318, 53710), (2620, 27019), (2636, 26855), (3295, 21484), (5371, 13180), (6590, 10742)]