204392920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{863}}^1$

素因数の和:1096

約数の個数: 64

約数和(自身を含む): 477757440

約数和(自身を除く): 273364520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 191, 248, 310, 382, 620, 764, 863, 955, 1240, 1528, 1726, 1910, 3452, 3820, 4315, 5921, 6904, 7640, 8630, 11842, 17260, 23684, 26753, 29605, 34520, 47368, 53506, 59210, 107012, 118420, 133765, 164833, 214024, 236840, 267530, 329666, 535060, 659332, 824165, 1070120, 1318664, 1648330, 3296660, 5109823, 6593320, 10219646, 20439292, 25549115, 40878584, 51098230, 102196460, 204392920]

約数ペア:

[(1, 204392920), (2, 102196460), (4, 51098230), (5, 40878584), (8, 25549115), (10, 20439292), (20, 10219646), (31, 6593320), (40, 5109823), (62, 3296660), (124, 1648330), (155, 1318664), (191, 1070120), (248, 824165), (310, 659332), (382, 535060), (620, 329666), (764, 267530), (863, 236840), (955, 214024), (1240, 164833), (1528, 133765), (1726, 118420), (1910, 107012), (3452, 59210), (3820, 53506), (4315, 47368), (5921, 34520), (6904, 29605), (7640, 26753), (8630, 23684), (11842, 17260)]