20125094840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1\times {\mathrm{19739}}^1$

素因数の和:20180

約数の個数: 64

約数和(自身を含む): 46049472000

約数和(自身を除く): 25924377160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 359, 568, 710, 718, 1420, 1436, 1795, 2840, 2872, 3590, 7180, 14360, 19739, 25489, 39478, 50978, 78956, 98695, 101956, 127445, 157912, 197390, 203912, 254890, 394780, 509780, 789560, 1019560, 1401469, 2802938, 5605876, 7007345, 7086301, 11211752, 14014690, 14172602, 28029380, 28345204, 35431505, 56058760, 56690408, 70863010, 141726020, 283452040, 503127371, 1006254742, 2012509484, 2515636855, 4025018968, 5031273710, 10062547420, 20125094840]

約数ペア:

[(1, 20125094840), (2, 10062547420), (4, 5031273710), (5, 4025018968), (8, 2515636855), (10, 2012509484), (20, 1006254742), (40, 503127371), (71, 283452040), (142, 141726020), (284, 70863010), (355, 56690408), (359, 56058760), (568, 35431505), (710, 28345204), (718, 28029380), (1420, 14172602), (1436, 14014690), (1795, 11211752), (2840, 7086301), (2872, 7007345), (3590, 5605876), (7180, 2802938), (14360, 1401469), (19739, 1019560), (25489, 789560), (39478, 509780), (50978, 394780), (78956, 254890), (98695, 203912), (101956, 197390), (127445, 157912)]