802665520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1\times {\mathrm{661}}^1$

素因数の和:1070

約数の個数: 80

約数和(自身を含む): 1917904032

約数和(自身を除く): 1115238512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 353, 430, 661, 688, 706, 860, 1322, 1412, 1720, 1765, 2644, 2824, 3305, 3440, 3530, 5288, 5648, 6610, 7060, 10576, 13220, 14120, 15179, 26440, 28240, 28423, 30358, 52880, 56846, 60716, 75895, 113692, 121432, 142115, 151790, 227384, 233333, 242864, 284230, 303580, 454768, 466666, 568460, 607160, 933332, 1136920, 1166665, 1214320, 1866664, 2273840, 2333330, 3733328, 4666660, 9333320, 10033319, 18666640, 20066638, 40133276, 50166595, 80266552, 100333190, 160533104, 200666380, 401332760, 802665520]

約数ペア:

[(1, 802665520), (2, 401332760), (4, 200666380), (5, 160533104), (8, 100333190), (10, 80266552), (16, 50166595), (20, 40133276), (40, 20066638), (43, 18666640), (80, 10033319), (86, 9333320), (172, 4666660), (215, 3733328), (344, 2333330), (353, 2273840), (430, 1866664), (661, 1214320), (688, 1166665), (706, 1136920), (860, 933332), (1322, 607160), (1412, 568460), (1720, 466666), (1765, 454768), (2644, 303580), (2824, 284230), (3305, 242864), (3440, 233333), (3530, 227384), (5288, 151790), (5648, 142115), (6610, 121432), (7060, 113692), (10576, 75895), (13220, 60716), (14120, 56846), (15179, 52880), (26440, 30358), (28240, 28423)]