10987940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{6173}}^1$

素因数の和:6271

約数の個数: 24

約数和(自身を含む): 23337720

約数和(自身を除く): 12349780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 6173, 12346, 24692, 30865, 61730, 123460, 549397, 1098794, 2197588, 2746985, 5493970, 10987940]

約数ペア:

[(1, 10987940), (2, 5493970), (4, 2746985), (5, 2197588), (10, 1098794), (20, 549397), (89, 123460), (178, 61730), (356, 30865), (445, 24692), (890, 12346), (1780, 6173)]