51978680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5261}}^1$

素因数の和:5304

約数の個数: 64

約数和(自身を含む): 132602400

約数和(自身を除く): 80623720

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 5261, 9880, 10522, 21044, 26305, 42088, 52610, 68393, 99959, 105220, 136786, 199918, 210440, 273572, 341965, 399836, 499795, 547144, 683930, 799672, 999590, 1299467, 1367860, 1999180, 2598934, 2735720, 3998360, 5197868, 6497335, 10395736, 12994670, 25989340, 51978680]

約数ペア:

[(1, 51978680), (2, 25989340), (4, 12994670), (5, 10395736), (8, 6497335), (10, 5197868), (13, 3998360), (19, 2735720), (20, 2598934), (26, 1999180), (38, 1367860), (40, 1299467), (52, 999590), (65, 799672), (76, 683930), (95, 547144), (104, 499795), (130, 399836), (152, 341965), (190, 273572), (247, 210440), (260, 199918), (380, 136786), (494, 105220), (520, 99959), (760, 68393), (988, 52610), (1235, 42088), (1976, 26305), (2470, 21044), (4940, 10522), (5261, 9880)]