145278640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{857}}^1$

素因数の和:1046

約数の個数: 80

約数和(自身を含む): 366414048

約数和(自身を除く): 221135408

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 163, 208, 260, 326, 520, 652, 815, 857, 1040, 1304, 1630, 1714, 2119, 2608, 3260, 3428, 4238, 4285, 6520, 6856, 8476, 8570, 10595, 11141, 13040, 13712, 16952, 17140, 21190, 22282, 33904, 34280, 42380, 44564, 55705, 68560, 84760, 89128, 111410, 139691, 169520, 178256, 222820, 279382, 445640, 558764, 698455, 891280, 1117528, 1396910, 1815983, 2235056, 2793820, 3631966, 5587640, 7263932, 9079915, 11175280, 14527864, 18159830, 29055728, 36319660, 72639320, 145278640]

約数ペア:

[(1, 145278640), (2, 72639320), (4, 36319660), (5, 29055728), (8, 18159830), (10, 14527864), (13, 11175280), (16, 9079915), (20, 7263932), (26, 5587640), (40, 3631966), (52, 2793820), (65, 2235056), (80, 1815983), (104, 1396910), (130, 1117528), (163, 891280), (208, 698455), (260, 558764), (326, 445640), (520, 279382), (652, 222820), (815, 178256), (857, 169520), (1040, 139691), (1304, 111410), (1630, 89128), (1714, 84760), (2119, 68560), (2608, 55705), (3260, 44564), (3428, 42380), (4238, 34280), (4285, 33904), (6520, 22282), (6856, 21190), (8476, 17140), (8570, 16952), (10595, 13712), (11141, 13040)]