20448360

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:815

約数の個数: 96

約数和(自身を含む): 67392000

約数和(自身を除く): 46943640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 79, 90, 120, 158, 180, 237, 316, 360, 395, 474, 632, 711, 719, 790, 948, 1185, 1422, 1438, 1580, 1896, 2157, 2370, 2844, 2876, 3160, 3555, 3595, 4314, 4740, 5688, 5752, 6471, 7110, 7190, 8628, 9480, 10785, 12942, 14220, 14380, 17256, 21570, 25884, 28440, 28760, 32355, 43140, 51768, 56801, 64710, 86280, 113602, 129420, 170403, 227204, 258840, 284005, 340806, 454408, 511209, 568010, 681612, 852015, 1022418, 1136020, 1363224, 1704030, 2044836, 2272040, 2556045, 3408060, 4089672, 5112090, 6816120, 10224180, 20448360]

約数ペア:

[(1, 20448360), (2, 10224180), (3, 6816120), (4, 5112090), (5, 4089672), (6, 3408060), (8, 2556045), (9, 2272040), (10, 2044836), (12, 1704030), (15, 1363224), (18, 1136020), (20, 1022418), (24, 852015), (30, 681612), (36, 568010), (40, 511209), (45, 454408), (60, 340806), (72, 284005), (79, 258840), (90, 227204), (120, 170403), (158, 129420), (180, 113602), (237, 86280), (316, 64710), (360, 56801), (395, 51768), (474, 43140), (632, 32355), (711, 28760), (719, 28440), (790, 25884), (948, 21570), (1185, 17256), (1422, 14380), (1438, 14220), (1580, 12942), (1896, 10785), (2157, 9480), (2370, 8628), (2844, 7190), (2876, 7110), (3160, 6471), (3555, 5752), (3595, 5688), (4314, 4740)]