331240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^2$

素因数の和:51

約数の個数: 72

約数和(自身を含む): 938790

約数和(自身を除く): 607550

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 104, 130, 140, 169, 182, 196, 245, 260, 280, 338, 364, 392, 455, 490, 520, 637, 676, 728, 845, 910, 980, 1183, 1274, 1352, 1690, 1820, 1960, 2366, 2548, 3185, 3380, 3640, 4732, 5096, 5915, 6370, 6760, 8281, 9464, 11830, 12740, 16562, 23660, 25480, 33124, 41405, 47320, 66248, 82810, 165620, 331240]

約数ペア:

[(1, 331240), (2, 165620), (4, 82810), (5, 66248), (7, 47320), (8, 41405), (10, 33124), (13, 25480), (14, 23660), (20, 16562), (26, 12740), (28, 11830), (35, 9464), (40, 8281), (49, 6760), (52, 6370), (56, 5915), (65, 5096), (70, 4732), (91, 3640), (98, 3380), (104, 3185), (130, 2548), (140, 2366), (169, 1960), (182, 1820), (196, 1690), (245, 1352), (260, 1274), (280, 1183), (338, 980), (364, 910), (392, 845), (455, 728), (490, 676), (520, 637)]