640743954

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^2\times {\mathrm{295819}}^1$

素因数の和:295862

約数の個数: 24

約数和(自身を含む): 1352489040

約数和(自身を除く): 711745086

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 361, 722, 1083, 2166, 295819, 591638, 887457, 1774914, 5620561, 11241122, 16861683, 33723366, 106790659, 213581318, 320371977, 640743954]

約数ペア:

[(1, 640743954), (2, 320371977), (3, 213581318), (6, 106790659), (19, 33723366), (38, 16861683), (57, 11241122), (114, 5620561), (361, 1774914), (722, 887457), (1083, 591638), (2166, 295819)]