72445680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:679

約数の個数: 120

約数和(自身を含む): 244895040

約数和(自身を除く): 172449360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 239, 240, 360, 421, 478, 717, 720, 842, 956, 1195, 1263, 1434, 1684, 1912, 2105, 2151, 2390, 2526, 2868, 3368, 3585, 3789, 3824, 4210, 4302, 4780, 5052, 5736, 6315, 6736, 7170, 7578, 8420, 8604, 9560, 10104, 10755, 11472, 12630, 14340, 15156, 16840, 17208, 18945, 19120, 20208, 21510, 25260, 28680, 30312, 33680, 34416, 37890, 43020, 50520, 57360, 60624, 75780, 86040, 100619, 101040, 151560, 172080, 201238, 301857, 303120, 402476, 503095, 603714, 804952, 905571, 1006190, 1207428, 1509285, 1609904, 1811142, 2012380, 2414856, 3018570, 3622284, 4024760, 4527855, 4829712, 6037140, 7244568, 8049520, 9055710, 12074280, 14489136, 18111420, 24148560, 36222840, 72445680]

約数ペア:

[(1, 72445680), (2, 36222840), (3, 24148560), (4, 18111420), (5, 14489136), (6, 12074280), (8, 9055710), (9, 8049520), (10, 7244568), (12, 6037140), (15, 4829712), (16, 4527855), (18, 4024760), (20, 3622284), (24, 3018570), (30, 2414856), (36, 2012380), (40, 1811142), (45, 1609904), (48, 1509285), (60, 1207428), (72, 1006190), (80, 905571), (90, 804952), (120, 603714), (144, 503095), (180, 402476), (239, 303120), (240, 301857), (360, 201238), (421, 172080), (478, 151560), (717, 101040), (720, 100619), (842, 86040), (956, 75780), (1195, 60624), (1263, 57360), (1434, 50520), (1684, 43020), (1912, 37890), (2105, 34416), (2151, 33680), (2390, 30312), (2526, 28680), (2868, 25260), (3368, 21510), (3585, 20208), (3789, 19120), (3824, 18945), (4210, 17208), (4302, 16840), (4780, 15156), (5052, 14340), (5736, 12630), (6315, 11472), (6736, 10755), (7170, 10104), (7578, 9560), (8420, 8604)]