639828464

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{22303}}^1$

素因数の和:22485

約数の個数: 40

約数和(自身を含む): 1360722432

約数和(自身を除く): 720893968

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 163, 176, 326, 652, 1304, 1793, 2608, 3586, 7172, 14344, 22303, 28688, 44606, 89212, 178424, 245333, 356848, 490666, 981332, 1962664, 3635389, 3925328, 7270778, 14541556, 29083112, 39989279, 58166224, 79978558, 159957116, 319914232, 639828464]

約数ペア:

[(1, 639828464), (2, 319914232), (4, 159957116), (8, 79978558), (11, 58166224), (16, 39989279), (22, 29083112), (44, 14541556), (88, 7270778), (163, 3925328), (176, 3635389), (326, 1962664), (652, 981332), (1304, 490666), (1793, 356848), (2608, 245333), (3586, 178424), (7172, 89212), (14344, 44606), (22303, 28688)]