131319320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1831}}^1$

素因数の和:2016

約数の個数: 64

約数和(自身を含む): 324483840

約数和(自身を除く): 193164520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 163, 220, 326, 440, 652, 815, 1304, 1630, 1793, 1831, 3260, 3586, 3662, 6520, 7172, 7324, 8965, 9155, 14344, 14648, 17930, 18310, 20141, 35860, 36620, 40282, 71720, 73240, 80564, 100705, 161128, 201410, 298453, 402820, 596906, 805640, 1193812, 1492265, 2387624, 2984530, 3282983, 5969060, 6565966, 11938120, 13131932, 16414915, 26263864, 32829830, 65659660, 131319320]

約数ペア:

[(1, 131319320), (2, 65659660), (4, 32829830), (5, 26263864), (8, 16414915), (10, 13131932), (11, 11938120), (20, 6565966), (22, 5969060), (40, 3282983), (44, 2984530), (55, 2387624), (88, 1492265), (110, 1193812), (163, 805640), (220, 596906), (326, 402820), (440, 298453), (652, 201410), (815, 161128), (1304, 100705), (1630, 80564), (1793, 73240), (1831, 71720), (3260, 40282), (3586, 36620), (3662, 35860), (6520, 20141), (7172, 18310), (7324, 17930), (8965, 14648), (9155, 14344)]