638863676

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{4001}}^1$

素因数の和:4226

約数の個数: 48

約数和(自身を含む): 1290885120

約数和(自身を除く): 652021444

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 191, 209, 382, 418, 764, 836, 2101, 3629, 4001, 4202, 7258, 8002, 8404, 14516, 16004, 39919, 44011, 76019, 79838, 88022, 152038, 159676, 176044, 304076, 764191, 836209, 1528382, 1672418, 3056764, 3344836, 8406101, 14519629, 16812202, 29039258, 33624404, 58078516, 159715919, 319431838, 638863676]

約数ペア:

[(1, 638863676), (2, 319431838), (4, 159715919), (11, 58078516), (19, 33624404), (22, 29039258), (38, 16812202), (44, 14519629), (76, 8406101), (191, 3344836), (209, 3056764), (382, 1672418), (418, 1528382), (764, 836209), (836, 764191), (2101, 304076), (3629, 176044), (4001, 159676), (4202, 152038), (7258, 88022), (8002, 79838), (8404, 76019), (14516, 44011), (16004, 39919)]