28080675

素因数分解:

$3^4\times 5^2\times 7^2\times {\mathrm{283}}^1$

素因数の和:319

約数の個数: 90

約数和(自身を含む): 60721188

約数和(自身を除く): 32640513

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 49, 63, 75, 81, 105, 135, 147, 175, 189, 225, 245, 283, 315, 405, 441, 525, 567, 675, 735, 849, 945, 1225, 1323, 1415, 1575, 1981, 2025, 2205, 2547, 2835, 3675, 3969, 4245, 4725, 5943, 6615, 7075, 7641, 9905, 11025, 12735, 13867, 14175, 17829, 19845, 21225, 22923, 29715, 33075, 38205, 41601, 49525, 53487, 63675, 69335, 89145, 99225, 114615, 124803, 148575, 160461, 191025, 208005, 267435, 346675, 374409, 445725, 573075, 624015, 802305, 1040025, 1123227, 1337175, 1872045, 3120075, 4011525, 5616135, 9360225, 28080675]

約数ペア:

[(1, 28080675), (3, 9360225), (5, 5616135), (7, 4011525), (9, 3120075), (15, 1872045), (21, 1337175), (25, 1123227), (27, 1040025), (35, 802305), (45, 624015), (49, 573075), (63, 445725), (75, 374409), (81, 346675), (105, 267435), (135, 208005), (147, 191025), (175, 160461), (189, 148575), (225, 124803), (245, 114615), (283, 99225), (315, 89145), (405, 69335), (441, 63675), (525, 53487), (567, 49525), (675, 41601), (735, 38205), (849, 33075), (945, 29715), (1225, 22923), (1323, 21225), (1415, 19845), (1575, 17829), (1981, 14175), (2025, 13867), (2205, 12735), (2547, 11025), (2835, 9905), (3675, 7641), (3969, 7075), (4245, 6615), (4725, 5943)]