127779560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{8849}}^1$

素因数の和:8898

約数の個数: 48

約数和(自身を含む): 303466500

約数和(自身を除く): 175686940

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 7220, 8849, 14440, 17698, 35396, 44245, 70792, 88490, 168131, 176980, 336262, 353960, 672524, 840655, 1345048, 1681310, 3194489, 3362620, 6388978, 6725240, 12777956, 15972445, 25555912, 31944890, 63889780, 127779560]

約数ペア:

[(1, 127779560), (2, 63889780), (4, 31944890), (5, 25555912), (8, 15972445), (10, 12777956), (19, 6725240), (20, 6388978), (38, 3362620), (40, 3194489), (76, 1681310), (95, 1345048), (152, 840655), (190, 672524), (361, 353960), (380, 336262), (722, 176980), (760, 168131), (1444, 88490), (1805, 70792), (2888, 44245), (3610, 35396), (7220, 17698), (8849, 14440)]