81263025

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 155990016

約数和(自身を除く): 74726991

約数列:

[1, 3, 5, 9, 15, 23, 25, 41, 45, 69, 75, 115, 123, 205, 207, 225, 345, 369, 383, 575, 615, 943, 1025, 1035, 1149, 1725, 1845, 1915, 2829, 3075, 3447, 4715, 5175, 5745, 8487, 8809, 9225, 9575, 14145, 15703, 17235, 23575, 26427, 28725, 42435, 44045, 47109, 70725, 78515, 79281, 86175, 132135, 141327, 212175, 220225, 235545, 361169, 392575, 396405, 660675, 706635, 1083507, 1177725, 1805845, 1982025, 3250521, 3533175, 5417535, 9029225, 16252605, 27087675, 81263025]

約数ペア:

[(1, 81263025), (3, 27087675), (5, 16252605), (9, 9029225), (15, 5417535), (23, 3533175), (25, 3250521), (41, 1982025), (45, 1805845), (69, 1177725), (75, 1083507), (115, 706635), (123, 660675), (205, 396405), (207, 392575), (225, 361169), (345, 235545), (369, 220225), (383, 212175), (575, 141327), (615, 132135), (943, 86175), (1025, 79281), (1035, 78515), (1149, 70725), (1725, 47109), (1845, 44045), (1915, 42435), (2829, 28725), (3075, 26427), (3447, 23575), (4715, 17235), (5175, 15703), (5745, 14145), (8487, 9575), (8809, 9225)]