789519820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1\times {\mathrm{857}}^1$

素因数の和:1570

約数の個数: 48

約数和(自身を含む): 1685331648

約数和(自身を除く): 895811828

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 631, 730, 857, 1262, 1460, 1714, 2524, 3155, 3428, 4285, 6310, 8570, 12620, 17140, 46063, 62561, 92126, 125122, 184252, 230315, 250244, 312805, 460630, 540767, 625610, 921260, 1081534, 1251220, 2163068, 2703835, 5407670, 10815340, 39475991, 78951982, 157903964, 197379955, 394759910, 789519820]

約数ペア:

[(1, 789519820), (2, 394759910), (4, 197379955), (5, 157903964), (10, 78951982), (20, 39475991), (73, 10815340), (146, 5407670), (292, 2703835), (365, 2163068), (631, 1251220), (730, 1081534), (857, 921260), (1262, 625610), (1460, 540767), (1714, 460630), (2524, 312805), (3155, 250244), (3428, 230315), (4285, 184252), (6310, 125122), (8570, 92126), (12620, 62561), (17140, 46063)]