30720375

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:158

約数の個数: 96

約数和(自身を含む): 65415168

約数和(自身を除く): 34694793

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 47, 63, 75, 83, 105, 125, 141, 175, 225, 235, 249, 315, 329, 375, 415, 423, 525, 581, 705, 747, 875, 987, 1125, 1175, 1245, 1575, 1645, 1743, 2075, 2115, 2625, 2905, 2961, 3525, 3735, 3901, 4935, 5229, 5875, 6225, 7875, 8225, 8715, 10375, 10575, 11703, 14525, 14805, 17625, 18675, 19505, 24675, 26145, 27307, 31125, 35109, 41125, 43575, 52875, 58515, 72625, 74025, 81921, 93375, 97525, 123375, 130725, 136535, 175545, 217875, 245763, 292575, 370125, 409605, 487625, 653625, 682675, 877725, 1228815, 1462875, 2048025, 3413375, 4388625, 6144075, 10240125, 30720375]

約数ペア:

[(1, 30720375), (3, 10240125), (5, 6144075), (7, 4388625), (9, 3413375), (15, 2048025), (21, 1462875), (25, 1228815), (35, 877725), (45, 682675), (47, 653625), (63, 487625), (75, 409605), (83, 370125), (105, 292575), (125, 245763), (141, 217875), (175, 175545), (225, 136535), (235, 130725), (249, 123375), (315, 97525), (329, 93375), (375, 81921), (415, 74025), (423, 72625), (525, 58515), (581, 52875), (705, 43575), (747, 41125), (875, 35109), (987, 31125), (1125, 27307), (1175, 26145), (1245, 24675), (1575, 19505), (1645, 18675), (1743, 17625), (2075, 14805), (2115, 14525), (2625, 11703), (2905, 10575), (2961, 10375), (3525, 8715), (3735, 8225), (3901, 7875), (4935, 6225), (5229, 5875)]