19801354080

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{195511}}^1$

素因数の和:195740

約数の個数: 96

約数和(自身を含む): 62670198528

約数和(自身を除く): 42868844448

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 211, 240, 422, 480, 633, 844, 1055, 1266, 1688, 2110, 2532, 3165, 3376, 4220, 5064, 6330, 6752, 8440, 10128, 12660, 16880, 20256, 25320, 33760, 50640, 101280, 195511, 391022, 586533, 782044, 977555, 1173066, 1564088, 1955110, 2346132, 2932665, 3128176, 3910220, 4692264, 5865330, 6256352, 7820440, 9384528, 11730660, 15640880, 18769056, 23461320, 31281760, 41252821, 46922640, 82505642, 93845280, 123758463, 165011284, 206264105, 247516926, 330022568, 412528210, 495033852, 618792315, 660045136, 825056420, 990067704, 1237584630, 1320090272, 1650112840, 1980135408, 2475169260, 3300225680, 3960270816, 4950338520, 6600451360, 9900677040, 19801354080]

約数ペア:

[(1, 19801354080), (2, 9900677040), (3, 6600451360), (4, 4950338520), (5, 3960270816), (6, 3300225680), (8, 2475169260), (10, 1980135408), (12, 1650112840), (15, 1320090272), (16, 1237584630), (20, 990067704), (24, 825056420), (30, 660045136), (32, 618792315), (40, 495033852), (48, 412528210), (60, 330022568), (80, 247516926), (96, 206264105), (120, 165011284), (160, 123758463), (211, 93845280), (240, 82505642), (422, 46922640), (480, 41252821), (633, 31281760), (844, 23461320), (1055, 18769056), (1266, 15640880), (1688, 11730660), (2110, 9384528), (2532, 7820440), (3165, 6256352), (3376, 5865330), (4220, 4692264), (5064, 3910220), (6330, 3128176), (6752, 2932665), (8440, 2346132), (10128, 1955110), (12660, 1564088), (16880, 1173066), (20256, 977555), (25320, 782044), (33760, 586533), (50640, 391022), (101280, 195511)]