216380860

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{54919}}^1$

素因数の和:55125

約数の個数: 24

約数和(自身を含む): 456714720

約数和(自身を除く): 240333860

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 54919, 109838, 219676, 274595, 549190, 1098380, 10819043, 21638086, 43276172, 54095215, 108190430, 216380860]

約数ペア:

[(1, 216380860), (2, 108190430), (4, 54095215), (5, 43276172), (10, 21638086), (20, 10819043), (197, 1098380), (394, 549190), (788, 274595), (985, 219676), (1970, 109838), (3940, 54919)]