28480400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5477}}^1$

素因数の和:5508

約数の個数: 60

約数和(自身を含む): 73701012

約数和(自身を除く): 45220612

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 5477, 10954, 21908, 27385, 43816, 54770, 71201, 87632, 109540, 136925, 142402, 219080, 273850, 284804, 356005, 438160, 547700, 569608, 712010, 1095400, 1139216, 1424020, 1780025, 2190800, 2848040, 3560050, 5696080, 7120100, 14240200, 28480400]

約数ペア:

[(1, 28480400), (2, 14240200), (4, 7120100), (5, 5696080), (8, 3560050), (10, 2848040), (13, 2190800), (16, 1780025), (20, 1424020), (25, 1139216), (26, 1095400), (40, 712010), (50, 569608), (52, 547700), (65, 438160), (80, 356005), (100, 284804), (104, 273850), (130, 219080), (200, 142402), (208, 136925), (260, 109540), (325, 87632), (400, 71201), (520, 54770), (650, 43816), (1040, 27385), (1300, 21908), (2600, 10954), (5200, 5477)]