20985200

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{2281}}^1$

素因数の和:2322

約数の個数: 60

約数和(自身を含む): 52632048

約数和(自身を除く): 31646848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 184, 200, 230, 368, 400, 460, 575, 920, 1150, 1840, 2281, 2300, 4562, 4600, 9124, 9200, 11405, 18248, 22810, 36496, 45620, 52463, 57025, 91240, 104926, 114050, 182480, 209852, 228100, 262315, 419704, 456200, 524630, 839408, 912400, 1049260, 1311575, 2098520, 2623150, 4197040, 5246300, 10492600, 20985200]

約数ペア:

[(1, 20985200), (2, 10492600), (4, 5246300), (5, 4197040), (8, 2623150), (10, 2098520), (16, 1311575), (20, 1049260), (23, 912400), (25, 839408), (40, 524630), (46, 456200), (50, 419704), (80, 262315), (92, 228100), (100, 209852), (115, 182480), (184, 114050), (200, 104926), (230, 91240), (368, 57025), (400, 52463), (460, 45620), (575, 36496), (920, 22810), (1150, 18248), (1840, 11405), (2281, 9200), (2300, 9124), (4562, 4600)]