81779625

素因数分解:

$3^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:265

約数の個数: 80

約数和(自身を含む): 156972816

約数和(自身を除く): 75193191

約数列:

[1, 3, 5, 9, 15, 25, 27, 41, 45, 75, 81, 123, 125, 135, 197, 205, 225, 369, 375, 405, 591, 615, 675, 985, 1025, 1107, 1125, 1773, 1845, 2025, 2955, 3075, 3321, 3375, 4925, 5125, 5319, 5535, 8077, 8865, 9225, 10125, 14775, 15375, 15957, 16605, 24231, 24625, 26595, 27675, 40385, 44325, 46125, 72693, 73875, 79785, 83025, 121155, 132975, 138375, 201925, 218079, 221625, 363465, 398925, 415125, 605775, 654237, 664875, 1009625, 1090395, 1817325, 1994625, 3028875, 3271185, 5451975, 9086625, 16355925, 27259875, 81779625]

約数ペア:

[(1, 81779625), (3, 27259875), (5, 16355925), (9, 9086625), (15, 5451975), (25, 3271185), (27, 3028875), (41, 1994625), (45, 1817325), (75, 1090395), (81, 1009625), (123, 664875), (125, 654237), (135, 605775), (197, 415125), (205, 398925), (225, 363465), (369, 221625), (375, 218079), (405, 201925), (591, 138375), (615, 132975), (675, 121155), (985, 83025), (1025, 79785), (1107, 73875), (1125, 72693), (1773, 46125), (1845, 44325), (2025, 40385), (2955, 27675), (3075, 26595), (3321, 24625), (3375, 24231), (4925, 16605), (5125, 15957), (5319, 15375), (5535, 14775), (8077, 10125), (8865, 9225)]