81640125

素因数分解:

$3^2\times 5^3\times 7^2\times {\mathrm{1481}}^1$

素因数の和:1516

約数の個数: 72

約数和(自身を含む): 171313272

約数和(自身を除く): 89673147

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 125, 147, 175, 225, 245, 315, 375, 441, 525, 735, 875, 1125, 1225, 1481, 1575, 2205, 2625, 3675, 4443, 6125, 7405, 7875, 10367, 11025, 13329, 18375, 22215, 31101, 37025, 51835, 55125, 66645, 72569, 93303, 111075, 155505, 185125, 217707, 259175, 333225, 362845, 466515, 555375, 653121, 777525, 1088535, 1295875, 1666125, 1814225, 2332575, 3265605, 3887625, 5442675, 9071125, 11662875, 16328025, 27213375, 81640125]

約数ペア:

[(1, 81640125), (3, 27213375), (5, 16328025), (7, 11662875), (9, 9071125), (15, 5442675), (21, 3887625), (25, 3265605), (35, 2332575), (45, 1814225), (49, 1666125), (63, 1295875), (75, 1088535), (105, 777525), (125, 653121), (147, 555375), (175, 466515), (225, 362845), (245, 333225), (315, 259175), (375, 217707), (441, 185125), (525, 155505), (735, 111075), (875, 93303), (1125, 72569), (1225, 66645), (1481, 55125), (1575, 51835), (2205, 37025), (2625, 31101), (3675, 22215), (4443, 18375), (6125, 13329), (7405, 11025), (7875, 10367)]