201943880

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{337}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 464330880

約数和(自身を除く): 262387000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 211, 284, 337, 355, 422, 568, 674, 710, 844, 1055, 1348, 1420, 1685, 1688, 2110, 2696, 2840, 3370, 4220, 6740, 8440, 13480, 14981, 23927, 29962, 47854, 59924, 71107, 74905, 95708, 119635, 119848, 142214, 149810, 191416, 239270, 284428, 299620, 355535, 478540, 568856, 599240, 711070, 957080, 1422140, 2844280, 5048597, 10097194, 20194388, 25242985, 40388776, 50485970, 100971940, 201943880]

約数ペア:

[(1, 201943880), (2, 100971940), (4, 50485970), (5, 40388776), (8, 25242985), (10, 20194388), (20, 10097194), (40, 5048597), (71, 2844280), (142, 1422140), (211, 957080), (284, 711070), (337, 599240), (355, 568856), (422, 478540), (568, 355535), (674, 299620), (710, 284428), (844, 239270), (1055, 191416), (1348, 149810), (1420, 142214), (1685, 119848), (1688, 119635), (2110, 95708), (2696, 74905), (2840, 71107), (3370, 59924), (4220, 47854), (6740, 29962), (8440, 23927), (13480, 14981)]