1320201220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1\times {\mathrm{563}}^1$

素因数の和:925

約数の個数: 96

約数和(自身を含む): 3104075520

約数和(自身を除く): 1783874300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 311, 377, 563, 580, 622, 754, 1126, 1244, 1508, 1555, 1885, 2252, 2815, 3110, 3770, 4043, 5630, 6220, 7319, 7540, 8086, 9019, 11260, 14638, 16172, 16327, 18038, 20215, 29276, 32654, 36076, 36595, 40430, 45095, 65308, 73190, 80860, 81635, 90190, 117247, 146380, 163270, 175093, 180380, 212251, 234494, 326540, 350186, 424502, 468988, 586235, 700372, 849004, 875465, 1061255, 1172470, 1750930, 2122510, 2276209, 2344940, 3501860, 4245020, 4552418, 5077697, 9104836, 10155394, 11381045, 20310788, 22762090, 25388485, 45524180, 50776970, 66010061, 101553940, 132020122, 264040244, 330050305, 660100610, 1320201220]

約数ペア:

[(1, 1320201220), (2, 660100610), (4, 330050305), (5, 264040244), (10, 132020122), (13, 101553940), (20, 66010061), (26, 50776970), (29, 45524180), (52, 25388485), (58, 22762090), (65, 20310788), (116, 11381045), (130, 10155394), (145, 9104836), (260, 5077697), (290, 4552418), (311, 4245020), (377, 3501860), (563, 2344940), (580, 2276209), (622, 2122510), (754, 1750930), (1126, 1172470), (1244, 1061255), (1508, 875465), (1555, 849004), (1885, 700372), (2252, 586235), (2815, 468988), (3110, 424502), (3770, 350186), (4043, 326540), (5630, 234494), (6220, 212251), (7319, 180380), (7540, 175093), (8086, 163270), (9019, 146380), (11260, 117247), (14638, 90190), (16172, 81635), (16327, 80860), (18038, 73190), (20215, 65308), (29276, 45095), (32654, 40430), (36076, 36595)]