18748275

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 39664128

約数和(自身を除く): 20915853

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 41, 65, 67, 75, 91, 105, 123, 175, 195, 201, 205, 273, 287, 325, 335, 455, 469, 525, 533, 615, 861, 871, 975, 1005, 1025, 1365, 1407, 1435, 1599, 1675, 2275, 2345, 2613, 2665, 2747, 3075, 3731, 4305, 4355, 5025, 6097, 6825, 7035, 7175, 7995, 8241, 11193, 11725, 13065, 13325, 13735, 18291, 18655, 19229, 21525, 21775, 30485, 35175, 35711, 39975, 41205, 55965, 57687, 65325, 68675, 91455, 93275, 96145, 107133, 152425, 178555, 206025, 249977, 279825, 288435, 457275, 480725, 535665, 749931, 892775, 1249885, 1442175, 2678325, 3749655, 6249425, 18748275]

約数ペア:

[(1, 18748275), (3, 6249425), (5, 3749655), (7, 2678325), (13, 1442175), (15, 1249885), (21, 892775), (25, 749931), (35, 535665), (39, 480725), (41, 457275), (65, 288435), (67, 279825), (75, 249977), (91, 206025), (105, 178555), (123, 152425), (175, 107133), (195, 96145), (201, 93275), (205, 91455), (273, 68675), (287, 65325), (325, 57687), (335, 55965), (455, 41205), (469, 39975), (525, 35711), (533, 35175), (615, 30485), (861, 21775), (871, 21525), (975, 19229), (1005, 18655), (1025, 18291), (1365, 13735), (1407, 13325), (1435, 13065), (1599, 11725), (1675, 11193), (2275, 8241), (2345, 7995), (2613, 7175), (2665, 7035), (2747, 6825), (3075, 6097), (3731, 5025), (4305, 4355)]