81212625

素因数分解:

$3^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{617}}^1$

素因数の和:657

約数の個数: 80

約数和(自身を含む): 163315152

約数和(自身を除く): 82102527

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, 617, 675, 975, 1053, 1125, 1625, 1755, 1851, 2025, 2925, 3085, 3375, 4875, 5265, 5553, 8021, 8775, 9255, 10125, 14625, 15425, 16659, 24063, 26325, 27765, 40105, 43875, 46275, 49977, 72189, 77125, 83295, 120315, 131625, 138825, 200525, 216567, 231375, 249885, 360945, 416475, 601575, 649701, 694125, 1002625, 1082835, 1249425, 1804725, 2082375, 3007875, 3248505, 5414175, 6247125, 9023625, 16242525, 27070875, 81212625]

約数ペア:

[(1, 81212625), (3, 27070875), (5, 16242525), (9, 9023625), (13, 6247125), (15, 5414175), (25, 3248505), (27, 3007875), (39, 2082375), (45, 1804725), (65, 1249425), (75, 1082835), (81, 1002625), (117, 694125), (125, 649701), (135, 601575), (195, 416475), (225, 360945), (325, 249885), (351, 231375), (375, 216567), (405, 200525), (585, 138825), (617, 131625), (675, 120315), (975, 83295), (1053, 77125), (1125, 72189), (1625, 49977), (1755, 46275), (1851, 43875), (2025, 40105), (2925, 27765), (3085, 26325), (3375, 24063), (4875, 16659), (5265, 15425), (5553, 14625), (8021, 10125), (8775, 9255)]