39831740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{641}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 90599040

約数和(自身を除く): 50767300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 239, 260, 478, 641, 956, 1195, 1282, 2390, 2564, 3107, 3205, 4780, 6214, 6410, 8333, 12428, 12820, 15535, 16666, 31070, 33332, 41665, 62140, 83330, 153199, 166660, 306398, 612796, 765995, 1531990, 1991587, 3063980, 3983174, 7966348, 9957935, 19915870, 39831740]

約数ペア:

[(1, 39831740), (2, 19915870), (4, 9957935), (5, 7966348), (10, 3983174), (13, 3063980), (20, 1991587), (26, 1531990), (52, 765995), (65, 612796), (130, 306398), (239, 166660), (260, 153199), (478, 83330), (641, 62140), (956, 41665), (1195, 33332), (1282, 31070), (2390, 16666), (2564, 15535), (3107, 12820), (3205, 12428), (4780, 8333), (6214, 6410)]