79697780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1601}}^1$

素因数の和:1760

約数の個数: 48

約数和(自身を含む): 177629760

約数和(自身を除く): 97931980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 131, 190, 262, 380, 524, 655, 1310, 1601, 2489, 2620, 3202, 4978, 6404, 8005, 9956, 12445, 16010, 24890, 30419, 32020, 49780, 60838, 121676, 152095, 209731, 304190, 419462, 608380, 838924, 1048655, 2097310, 3984889, 4194620, 7969778, 15939556, 19924445, 39848890, 79697780]

約数ペア:

[(1, 79697780), (2, 39848890), (4, 19924445), (5, 15939556), (10, 7969778), (19, 4194620), (20, 3984889), (38, 2097310), (76, 1048655), (95, 838924), (131, 608380), (190, 419462), (262, 304190), (380, 209731), (524, 152095), (655, 121676), (1310, 60838), (1601, 49780), (2489, 32020), (2620, 30419), (3202, 24890), (4978, 16010), (6404, 12445), (8005, 9956)]