210169940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1663}}^1$

素因数の和:1832

約数の個数: 48

約数和(自身を含む): 452874240

約数和(自身を除く): 242704300

約数列:

[1, 2, 4, 5, 10, 20, 71, 89, 142, 178, 284, 355, 356, 445, 710, 890, 1420, 1663, 1780, 3326, 6319, 6652, 8315, 12638, 16630, 25276, 31595, 33260, 63190, 118073, 126380, 148007, 236146, 296014, 472292, 590365, 592028, 740035, 1180730, 1480070, 2361460, 2960140, 10508497, 21016994, 42033988, 52542485, 105084970, 210169940]

約数ペア:

[(1, 210169940), (2, 105084970), (4, 52542485), (5, 42033988), (10, 21016994), (20, 10508497), (71, 2960140), (89, 2361460), (142, 1480070), (178, 1180730), (284, 740035), (355, 592028), (356, 590365), (445, 472292), (710, 296014), (890, 236146), (1420, 148007), (1663, 126380), (1780, 118073), (3326, 63190), (6319, 33260), (6652, 31595), (8315, 25276), (12638, 16630)]