81475875

素因数分解:

$3^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:659

約数の個数: 80

約数和(自身を含む): 163843680

約数和(自身を除く): 82367805

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 125, 135, 195, 225, 325, 351, 375, 405, 585, 619, 675, 975, 1053, 1125, 1625, 1755, 1857, 2025, 2925, 3095, 3375, 4875, 5265, 5571, 8047, 8775, 9285, 10125, 14625, 15475, 16713, 24141, 26325, 27855, 40235, 43875, 46425, 50139, 72423, 77375, 83565, 120705, 131625, 139275, 201175, 217269, 232125, 250695, 362115, 417825, 603525, 651807, 696375, 1005875, 1086345, 1253475, 1810575, 2089125, 3017625, 3259035, 5431725, 6267375, 9052875, 16295175, 27158625, 81475875]

約数ペア:

[(1, 81475875), (3, 27158625), (5, 16295175), (9, 9052875), (13, 6267375), (15, 5431725), (25, 3259035), (27, 3017625), (39, 2089125), (45, 1810575), (65, 1253475), (75, 1086345), (81, 1005875), (117, 696375), (125, 651807), (135, 603525), (195, 417825), (225, 362115), (325, 250695), (351, 232125), (375, 217269), (405, 201175), (585, 139275), (619, 131625), (675, 120705), (975, 83565), (1053, 77375), (1125, 72423), (1625, 50139), (1755, 46425), (1857, 43875), (2025, 40235), (2925, 27855), (3095, 26325), (3375, 24141), (4875, 16713), (5265, 15475), (5571, 14625), (8047, 10125), (8775, 9285)]