15646820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1531}}^1$

素因数の和:1620

約数の個数: 48

約数和(自身を含む): 38091648

約数和(自身を除く): 22444828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 1531, 2044, 2555, 3062, 5110, 6124, 7655, 10220, 10717, 15310, 21434, 30620, 42868, 53585, 107170, 111763, 214340, 223526, 447052, 558815, 782341, 1117630, 1564682, 2235260, 3129364, 3911705, 7823410, 15646820]

約数ペア:

[(1, 15646820), (2, 7823410), (4, 3911705), (5, 3129364), (7, 2235260), (10, 1564682), (14, 1117630), (20, 782341), (28, 558815), (35, 447052), (70, 223526), (73, 214340), (140, 111763), (146, 107170), (292, 53585), (365, 42868), (511, 30620), (730, 21434), (1022, 15310), (1460, 10717), (1531, 10220), (2044, 7655), (2555, 6124), (3062, 5110)]