19889040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1049}}^1$

素因数の和:1144

約数の個数: 80

約数和(自身を含む): 62496000

約数和(自身を除く): 42606960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1049, 1185, 1264, 1580, 1896, 2098, 2370, 3147, 3160, 3792, 4196, 4740, 5245, 6294, 6320, 8392, 9480, 10490, 12588, 15735, 16784, 18960, 20980, 25176, 31470, 41960, 50352, 62940, 82871, 83920, 125880, 165742, 248613, 251760, 331484, 414355, 497226, 662968, 828710, 994452, 1243065, 1325936, 1657420, 1988904, 2486130, 3314840, 3977808, 4972260, 6629680, 9944520, 19889040]

約数ペア:

[(1, 19889040), (2, 9944520), (3, 6629680), (4, 4972260), (5, 3977808), (6, 3314840), (8, 2486130), (10, 1988904), (12, 1657420), (15, 1325936), (16, 1243065), (20, 994452), (24, 828710), (30, 662968), (40, 497226), (48, 414355), (60, 331484), (79, 251760), (80, 248613), (120, 165742), (158, 125880), (237, 83920), (240, 82871), (316, 62940), (395, 50352), (474, 41960), (632, 31470), (790, 25176), (948, 20980), (1049, 18960), (1185, 16784), (1264, 15735), (1580, 12588), (1896, 10490), (2098, 9480), (2370, 8392), (3147, 6320), (3160, 6294), (3792, 5245), (4196, 4740)]