21551280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89797}}^1$

素因数の和:89813

約数の個数: 40

約数和(自身を含む): 66809712

約数和(自身を除く): 45258432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89797, 179594, 269391, 359188, 448985, 538782, 718376, 897970, 1077564, 1346955, 1436752, 1795940, 2155128, 2693910, 3591880, 4310256, 5387820, 7183760, 10775640, 21551280]

約数ペア:

[(1, 21551280), (2, 10775640), (3, 7183760), (4, 5387820), (5, 4310256), (6, 3591880), (8, 2693910), (10, 2155128), (12, 1795940), (15, 1436752), (16, 1346955), (20, 1077564), (24, 897970), (30, 718376), (40, 538782), (48, 448985), (60, 359188), (80, 269391), (120, 179594), (240, 89797)]