28753680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5209}}^1$

素因数の和:5248

約数の個数: 80

約数和(自身を含む): 93029760

約数和(自身を除く): 64276080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 5209, 5520, 10418, 15627, 20836, 26045, 31254, 41672, 52090, 62508, 78135, 83344, 104180, 119807, 125016, 156270, 208360, 239614, 250032, 312540, 359421, 416720, 479228, 599035, 625080, 718842, 958456, 1198070, 1250160, 1437684, 1797105, 1916912, 2396140, 2875368, 3594210, 4792280, 5750736, 7188420, 9584560, 14376840, 28753680]

約数ペア:

[(1, 28753680), (2, 14376840), (3, 9584560), (4, 7188420), (5, 5750736), (6, 4792280), (8, 3594210), (10, 2875368), (12, 2396140), (15, 1916912), (16, 1797105), (20, 1437684), (23, 1250160), (24, 1198070), (30, 958456), (40, 718842), (46, 625080), (48, 599035), (60, 479228), (69, 416720), (80, 359421), (92, 312540), (115, 250032), (120, 239614), (138, 208360), (184, 156270), (230, 125016), (240, 119807), (276, 104180), (345, 83344), (368, 78135), (460, 62508), (552, 52090), (690, 41672), (920, 31254), (1104, 26045), (1380, 20836), (1840, 15627), (2760, 10418), (5209, 5520)]