28207920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9041}}^1$

素因数の和:9070

約数の個数: 80

約数和(自身を含む): 94181472

約数和(自身を除く): 65973552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 9041, 18082, 27123, 36164, 45205, 54246, 72328, 90410, 108492, 117533, 135615, 144656, 180820, 216984, 235066, 271230, 352599, 361640, 433968, 470132, 542460, 587665, 705198, 723280, 940264, 1084920, 1175330, 1410396, 1762995, 1880528, 2169840, 2350660, 2820792, 3525990, 4701320, 5641584, 7051980, 9402640, 14103960, 28207920]

約数ペア:

[(1, 28207920), (2, 14103960), (3, 9402640), (4, 7051980), (5, 5641584), (6, 4701320), (8, 3525990), (10, 2820792), (12, 2350660), (13, 2169840), (15, 1880528), (16, 1762995), (20, 1410396), (24, 1175330), (26, 1084920), (30, 940264), (39, 723280), (40, 705198), (48, 587665), (52, 542460), (60, 470132), (65, 433968), (78, 361640), (80, 352599), (104, 271230), (120, 235066), (130, 216984), (156, 180820), (195, 144656), (208, 135615), (240, 117533), (260, 108492), (312, 90410), (390, 72328), (520, 54246), (624, 45205), (780, 36164), (1040, 27123), (1560, 18082), (3120, 9041)]