644740984

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{114641}}^1$

素因数の和:114703

約数の個数: 32

約数和(自身を含む): 1306918800

約数和(自身を除く): 662177816

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 152, 296, 703, 1406, 2812, 5624, 114641, 229282, 458564, 917128, 2178179, 4241717, 4356358, 8483434, 8712716, 16966868, 17425432, 33933736, 80592623, 161185246, 322370492, 644740984]

約数ペア:

[(1, 644740984), (2, 322370492), (4, 161185246), (8, 80592623), (19, 33933736), (37, 17425432), (38, 16966868), (74, 8712716), (76, 8483434), (148, 4356358), (152, 4241717), (296, 2178179), (703, 917128), (1406, 458564), (2812, 229282), (5624, 114641)]