30715480

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:308

約数の個数: 64

約数和(自身を含む): 71555040

約数和(自身を除く): 40839560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 73, 134, 146, 157, 268, 292, 314, 335, 365, 536, 584, 628, 670, 730, 785, 1256, 1340, 1460, 1570, 2680, 2920, 3140, 4891, 6280, 9782, 10519, 11461, 19564, 21038, 22922, 24455, 39128, 42076, 45844, 48910, 52595, 57305, 84152, 91688, 97820, 105190, 114610, 195640, 210380, 229220, 420760, 458440, 767887, 1535774, 3071548, 3839435, 6143096, 7678870, 15357740, 30715480]

約数ペア:

[(1, 30715480), (2, 15357740), (4, 7678870), (5, 6143096), (8, 3839435), (10, 3071548), (20, 1535774), (40, 767887), (67, 458440), (73, 420760), (134, 229220), (146, 210380), (157, 195640), (268, 114610), (292, 105190), (314, 97820), (335, 91688), (365, 84152), (536, 57305), (584, 52595), (628, 48910), (670, 45844), (730, 42076), (785, 39128), (1256, 24455), (1340, 22922), (1460, 21038), (1570, 19564), (2680, 11461), (2920, 10519), (3140, 9782), (4891, 6280)]