163996875

素因数分解:

$3^2\times 5^5\times 7^3\times {\mathrm{17}}^1$

素因数の和:69

約数の個数: 144

約数和(自身を含む): 365601600

約数和(自身を除く): 201604725

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 35, 45, 49, 51, 63, 75, 85, 105, 119, 125, 147, 153, 175, 225, 245, 255, 315, 343, 357, 375, 425, 441, 525, 595, 625, 735, 765, 833, 875, 1029, 1071, 1125, 1225, 1275, 1575, 1715, 1785, 1875, 2125, 2205, 2499, 2625, 2975, 3087, 3125, 3675, 3825, 4165, 4375, 5145, 5355, 5625, 5831, 6125, 6375, 7497, 7875, 8575, 8925, 9375, 10625, 11025, 12495, 13125, 14875, 15435, 17493, 18375, 19125, 20825, 21875, 25725, 26775, 28125, 29155, 30625, 31875, 37485, 39375, 42875, 44625, 52479, 53125, 55125, 62475, 65625, 74375, 77175, 87465, 91875, 95625, 104125, 128625, 133875, 145775, 153125, 159375, 187425, 196875, 214375, 223125, 262395, 275625, 312375, 371875, 385875, 437325, 459375, 478125, 520625, 643125, 669375, 728875, 937125, 1071875, 1115625, 1311975, 1378125, 1561875, 1929375, 2186625, 2603125, 3215625, 3346875, 3644375, 4685625, 6559875, 7809375, 9646875, 10933125, 18221875, 23428125, 32799375, 54665625, 163996875]

約数ペア:

[(1, 163996875), (3, 54665625), (5, 32799375), (7, 23428125), (9, 18221875), (15, 10933125), (17, 9646875), (21, 7809375), (25, 6559875), (35, 4685625), (45, 3644375), (49, 3346875), (51, 3215625), (63, 2603125), (75, 2186625), (85, 1929375), (105, 1561875), (119, 1378125), (125, 1311975), (147, 1115625), (153, 1071875), (175, 937125), (225, 728875), (245, 669375), (255, 643125), (315, 520625), (343, 478125), (357, 459375), (375, 437325), (425, 385875), (441, 371875), (525, 312375), (595, 275625), (625, 262395), (735, 223125), (765, 214375), (833, 196875), (875, 187425), (1029, 159375), (1071, 153125), (1125, 145775), (1225, 133875), (1275, 128625), (1575, 104125), (1715, 95625), (1785, 91875), (1875, 87465), (2125, 77175), (2205, 74375), (2499, 65625), (2625, 62475), (2975, 55125), (3087, 53125), (3125, 52479), (3675, 44625), (3825, 42875), (4165, 39375), (4375, 37485), (5145, 31875), (5355, 30625), (5625, 29155), (5831, 28125), (6125, 26775), (6375, 25725), (7497, 21875), (7875, 20825), (8575, 19125), (8925, 18375), (9375, 17493), (10625, 15435), (11025, 14875), (12495, 13125)]