18881200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3631}}^1$

素因数の和:3662

約数の個数: 60

約数和(自身を含む): 48864928

約数和(自身を除く): 29983728

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, 3631, 5200, 7262, 14524, 18155, 29048, 36310, 47203, 58096, 72620, 90775, 94406, 145240, 181550, 188812, 236015, 290480, 363100, 377624, 472030, 726200, 755248, 944060, 1180075, 1452400, 1888120, 2360150, 3776240, 4720300, 9440600, 18881200]

約数ペア:

[(1, 18881200), (2, 9440600), (4, 4720300), (5, 3776240), (8, 2360150), (10, 1888120), (13, 1452400), (16, 1180075), (20, 944060), (25, 755248), (26, 726200), (40, 472030), (50, 377624), (52, 363100), (65, 290480), (80, 236015), (100, 188812), (104, 181550), (130, 145240), (200, 94406), (208, 90775), (260, 72620), (325, 58096), (400, 47203), (520, 36310), (650, 29048), (1040, 18155), (1300, 14524), (2600, 7262), (3631, 5200)]