129210640

素因数分解:

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

素因数の和:561

約数の個数: 120

約数和(自身を含む): 343103040

約数和(自身を除く): 213892400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 169, 190, 208, 247, 260, 304, 338, 380, 494, 503, 520, 676, 760, 845, 988, 1006, 1040, 1235, 1352, 1520, 1690, 1976, 2012, 2470, 2515, 2704, 3211, 3380, 3952, 4024, 4940, 5030, 6422, 6539, 6760, 8048, 9557, 9880, 10060, 12844, 13078, 13520, 16055, 19114, 19760, 20120, 25688, 26156, 32110, 32695, 38228, 40240, 47785, 51376, 52312, 64220, 65390, 76456, 85007, 95570, 104624, 124241, 128440, 130780, 152912, 170014, 191140, 248482, 256880, 261560, 340028, 382280, 425035, 496964, 523120, 621205, 680056, 764560, 850070, 993928, 1242410, 1360112, 1615133, 1700140, 1987856, 2484820, 3230266, 3400280, 4969640, 6460532, 6800560, 8075665, 9939280, 12921064, 16151330, 25842128, 32302660, 64605320, 129210640]

約数ペア:

[(1, 129210640), (2, 64605320), (4, 32302660), (5, 25842128), (8, 16151330), (10, 12921064), (13, 9939280), (16, 8075665), (19, 6800560), (20, 6460532), (26, 4969640), (38, 3400280), (40, 3230266), (52, 2484820), (65, 1987856), (76, 1700140), (80, 1615133), (95, 1360112), (104, 1242410), (130, 993928), (152, 850070), (169, 764560), (190, 680056), (208, 621205), (247, 523120), (260, 496964), (304, 425035), (338, 382280), (380, 340028), (494, 261560), (503, 256880), (520, 248482), (676, 191140), (760, 170014), (845, 152912), (988, 130780), (1006, 128440), (1040, 124241), (1235, 104624), (1352, 95570), (1520, 85007), (1690, 76456), (1976, 65390), (2012, 64220), (2470, 52312), (2515, 51376), (2704, 47785), (3211, 40240), (3380, 38228), (3952, 32695), (4024, 32110), (4940, 26156), (5030, 25688), (6422, 20120), (6539, 19760), (6760, 19114), (8048, 16055), (9557, 13520), (9880, 13078), (10060, 12844)]