20126440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16231}}^1$

素因数の和:16273

約数の個数: 32

約数和(自身を含む): 46748160

約数和(自身を除く): 26621720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16231, 32462, 64924, 81155, 129848, 162310, 324620, 503161, 649240, 1006322, 2012644, 2515805, 4025288, 5031610, 10063220, 20126440]

約数ペア:

[(1, 20126440), (2, 10063220), (4, 5031610), (5, 4025288), (8, 2515805), (10, 2012644), (20, 1006322), (31, 649240), (40, 503161), (62, 324620), (124, 162310), (155, 129848), (248, 81155), (310, 64924), (620, 32462), (1240, 16231)]