211344920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{761}}^1$

素因数の和:956

約数の個数: 64

約数和(自身を含む): 488838240

約数和(自身を除く): 277493320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 131, 212, 262, 265, 424, 524, 530, 655, 761, 1048, 1060, 1310, 1522, 2120, 2620, 3044, 3805, 5240, 6088, 6943, 7610, 13886, 15220, 27772, 30440, 34715, 40333, 55544, 69430, 80666, 99691, 138860, 161332, 199382, 201665, 277720, 322664, 398764, 403330, 498455, 797528, 806660, 996910, 1613320, 1993820, 3987640, 5283623, 10567246, 21134492, 26418115, 42268984, 52836230, 105672460, 211344920]

約数ペア:

[(1, 211344920), (2, 105672460), (4, 52836230), (5, 42268984), (8, 26418115), (10, 21134492), (20, 10567246), (40, 5283623), (53, 3987640), (106, 1993820), (131, 1613320), (212, 996910), (262, 806660), (265, 797528), (424, 498455), (524, 403330), (530, 398764), (655, 322664), (761, 277720), (1048, 201665), (1060, 199382), (1310, 161332), (1522, 138860), (2120, 99691), (2620, 80666), (3044, 69430), (3805, 55544), (5240, 40333), (6088, 34715), (6943, 30440), (7610, 27772), (13886, 15220)]