399726710

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 768835584

約数和(自身を除く): 369108874

約数列:

[1, 2, 5, 10, 31, 43, 62, 86, 155, 157, 191, 215, 310, 314, 382, 430, 785, 955, 1333, 1570, 1910, 2666, 4867, 5921, 6665, 6751, 8213, 9734, 11842, 13330, 13502, 16426, 24335, 29605, 29987, 33755, 41065, 48670, 59210, 59974, 67510, 82130, 149935, 209281, 254603, 299870, 418562, 509206, 929597, 1046405, 1273015, 1289441, 1859194, 2092810, 2546030, 2578882, 4647985, 6447205, 9295970, 12894410, 39972671, 79945342, 199863355, 399726710]

約数ペア:

[(1, 399726710), (2, 199863355), (5, 79945342), (10, 39972671), (31, 12894410), (43, 9295970), (62, 6447205), (86, 4647985), (155, 2578882), (157, 2546030), (191, 2092810), (215, 1859194), (310, 1289441), (314, 1273015), (382, 1046405), (430, 929597), (785, 509206), (955, 418562), (1333, 299870), (1570, 254603), (1910, 209281), (2666, 149935), (4867, 82130), (5921, 67510), (6665, 59974), (6751, 59210), (8213, 48670), (9734, 41065), (11842, 33755), (13330, 29987), (13502, 29605), (16426, 24335)]