11996980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 26832960

約数和(自身を除く): 14835980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 241, 262, 380, 482, 524, 655, 964, 1205, 1310, 2410, 2489, 2620, 4579, 4820, 4978, 9158, 9956, 12445, 18316, 22895, 24890, 31571, 45790, 49780, 63142, 91580, 126284, 157855, 315710, 599849, 631420, 1199698, 2399396, 2999245, 5998490, 11996980]

約数ペア:

[(1, 11996980), (2, 5998490), (4, 2999245), (5, 2399396), (10, 1199698), (19, 631420), (20, 599849), (38, 315710), (76, 157855), (95, 126284), (131, 91580), (190, 63142), (241, 49780), (262, 45790), (380, 31571), (482, 24890), (524, 22895), (655, 18316), (964, 12445), (1205, 9956), (1310, 9158), (2410, 4978), (2489, 4820), (2620, 4579)]