204468400

素因数分解:

$2^4\times 5^2\times {\mathrm{511171}}^1$

素因数の和:511189

約数の個数: 30

約数和(自身を含む): 491236292

約数和(自身を除く): 286767892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 511171, 1022342, 2044684, 2555855, 4089368, 5111710, 8178736, 10223420, 12779275, 20446840, 25558550, 40893680, 51117100, 102234200, 204468400]

約数ペア:

[(1, 204468400), (2, 102234200), (4, 51117100), (5, 40893680), (8, 25558550), (10, 20446840), (16, 12779275), (20, 10223420), (25, 8178736), (40, 5111710), (50, 4089368), (80, 2555855), (100, 2044684), (200, 1022342), (400, 511171)]