7456420

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 16329600

約数和(自身を除く): 8873180

約数列:

[1, 2, 4, 5, 10, 20, 59, 71, 89, 118, 142, 178, 236, 284, 295, 355, 356, 445, 590, 710, 890, 1180, 1420, 1780, 4189, 5251, 6319, 8378, 10502, 12638, 16756, 20945, 21004, 25276, 26255, 31595, 41890, 52510, 63190, 83780, 105020, 126380, 372821, 745642, 1491284, 1864105, 3728210, 7456420]

約数ペア:

[(1, 7456420), (2, 3728210), (4, 1864105), (5, 1491284), (10, 745642), (20, 372821), (59, 126380), (71, 105020), (89, 83780), (118, 63190), (142, 52510), (178, 41890), (236, 31595), (284, 26255), (295, 25276), (355, 21004), (356, 20945), (445, 16756), (590, 12638), (710, 10502), (890, 8378), (1180, 6319), (1420, 5251), (1780, 4189)]