81639120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10973}}^1$

素因数の和:11020

約数の個数: 80

約数和(自身を含む): 261268992

約数和(自身を除く): 179629872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 10973, 21946, 32919, 43892, 54865, 65838, 87784, 109730, 131676, 164595, 175568, 219460, 263352, 329190, 340163, 438920, 526704, 658380, 680326, 877840, 1020489, 1316760, 1360652, 1700815, 2040978, 2633520, 2721304, 3401630, 4081956, 5102445, 5442608, 6803260, 8163912, 10204890, 13606520, 16327824, 20409780, 27213040, 40819560, 81639120]

約数ペア:

[(1, 81639120), (2, 40819560), (3, 27213040), (4, 20409780), (5, 16327824), (6, 13606520), (8, 10204890), (10, 8163912), (12, 6803260), (15, 5442608), (16, 5102445), (20, 4081956), (24, 3401630), (30, 2721304), (31, 2633520), (40, 2040978), (48, 1700815), (60, 1360652), (62, 1316760), (80, 1020489), (93, 877840), (120, 680326), (124, 658380), (155, 526704), (186, 438920), (240, 340163), (248, 329190), (310, 263352), (372, 219460), (465, 175568), (496, 164595), (620, 131676), (744, 109730), (930, 87784), (1240, 65838), (1488, 54865), (1860, 43892), (2480, 32919), (3720, 21946), (7440, 10973)]