9939280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:548

約数の個数: 80

約数和(自身を含む): 26248320

約数和(自身を除く): 16309040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 503, 520, 760, 988, 1006, 1040, 1235, 1520, 1976, 2012, 2470, 2515, 3952, 4024, 4940, 5030, 6539, 8048, 9557, 9880, 10060, 13078, 19114, 19760, 20120, 26156, 32695, 38228, 40240, 47785, 52312, 65390, 76456, 95570, 104624, 124241, 130780, 152912, 191140, 248482, 261560, 382280, 496964, 523120, 621205, 764560, 993928, 1242410, 1987856, 2484820, 4969640, 9939280]

約数ペア:

[(1, 9939280), (2, 4969640), (4, 2484820), (5, 1987856), (8, 1242410), (10, 993928), (13, 764560), (16, 621205), (19, 523120), (20, 496964), (26, 382280), (38, 261560), (40, 248482), (52, 191140), (65, 152912), (76, 130780), (80, 124241), (95, 104624), (104, 95570), (130, 76456), (152, 65390), (190, 52312), (208, 47785), (247, 40240), (260, 38228), (304, 32695), (380, 26156), (494, 20120), (503, 19760), (520, 19114), (760, 13078), (988, 10060), (1006, 9880), (1040, 9557), (1235, 8048), (1520, 6539), (1976, 5030), (2012, 4940), (2470, 4024), (2515, 3952)]