20635875

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1$

素因数の和:134

約数の個数: 96

約数和(自身を含む): 42928704

約数和(自身を除く): 22292829

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 83, 85, 117, 125, 153, 195, 221, 225, 249, 255, 325, 375, 415, 425, 585, 663, 747, 765, 975, 1079, 1105, 1125, 1245, 1275, 1411, 1625, 1989, 2075, 2125, 2925, 3237, 3315, 3735, 3825, 4233, 4875, 5395, 5525, 6225, 6375, 7055, 9711, 9945, 10375, 12699, 14625, 16185, 16575, 18343, 18675, 19125, 21165, 26975, 27625, 31125, 35275, 48555, 49725, 55029, 63495, 80925, 82875, 91715, 93375, 105825, 134875, 165087, 176375, 242775, 248625, 275145, 317475, 404625, 458575, 529125, 825435, 1213875, 1375725, 1587375, 2292875, 4127175, 6878625, 20635875]

約数ペア:

[(1, 20635875), (3, 6878625), (5, 4127175), (9, 2292875), (13, 1587375), (15, 1375725), (17, 1213875), (25, 825435), (39, 529125), (45, 458575), (51, 404625), (65, 317475), (75, 275145), (83, 248625), (85, 242775), (117, 176375), (125, 165087), (153, 134875), (195, 105825), (221, 93375), (225, 91715), (249, 82875), (255, 80925), (325, 63495), (375, 55029), (415, 49725), (425, 48555), (585, 35275), (663, 31125), (747, 27625), (765, 26975), (975, 21165), (1079, 19125), (1105, 18675), (1125, 18343), (1245, 16575), (1275, 16185), (1411, 14625), (1625, 12699), (1989, 10375), (2075, 9945), (2125, 9711), (2925, 7055), (3237, 6375), (3315, 6225), (3735, 5525), (3825, 5395), (4233, 4875)]