206823640

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1\times {\mathrm{337}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 475768800

約数和(自身を除く): 268945160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 229, 268, 335, 337, 458, 536, 670, 674, 916, 1145, 1340, 1348, 1685, 1832, 2290, 2680, 2696, 3370, 4580, 6740, 9160, 13480, 15343, 22579, 30686, 45158, 61372, 76715, 77173, 90316, 112895, 122744, 153430, 154346, 180632, 225790, 306860, 308692, 385865, 451580, 613720, 617384, 771730, 903160, 1543460, 3086920, 5170591, 10341182, 20682364, 25852955, 41364728, 51705910, 103411820, 206823640]

約数ペア:

[(1, 206823640), (2, 103411820), (4, 51705910), (5, 41364728), (8, 25852955), (10, 20682364), (20, 10341182), (40, 5170591), (67, 3086920), (134, 1543460), (229, 903160), (268, 771730), (335, 617384), (337, 613720), (458, 451580), (536, 385865), (670, 308692), (674, 306860), (916, 225790), (1145, 180632), (1340, 154346), (1348, 153430), (1685, 122744), (1832, 112895), (2290, 90316), (2680, 77173), (2696, 76715), (3370, 61372), (4580, 45158), (6740, 30686), (9160, 22579), (13480, 15343)]