28888920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1163}}^1$

素因数の和:1206

約数の個数: 128

約数和(自身を含む): 100569600

約数和(自身を除く): 71680680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 90, 92, 108, 115, 120, 135, 138, 180, 184, 207, 216, 230, 270, 276, 345, 360, 414, 460, 540, 552, 621, 690, 828, 920, 1035, 1080, 1163, 1242, 1380, 1656, 2070, 2326, 2484, 2760, 3105, 3489, 4140, 4652, 4968, 5815, 6210, 6978, 8280, 9304, 10467, 11630, 12420, 13956, 17445, 20934, 23260, 24840, 26749, 27912, 31401, 34890, 41868, 46520, 52335, 53498, 62802, 69780, 80247, 83736, 104670, 106996, 125604, 133745, 139560, 157005, 160494, 209340, 213992, 240741, 251208, 267490, 314010, 320988, 401235, 418680, 481482, 534980, 628020, 641976, 722223, 802470, 962964, 1069960, 1203705, 1256040, 1444446, 1604940, 1925928, 2407410, 2888892, 3209880, 3611115, 4814820, 5777784, 7222230, 9629640, 14444460, 28888920]

約数ペア:

[(1, 28888920), (2, 14444460), (3, 9629640), (4, 7222230), (5, 5777784), (6, 4814820), (8, 3611115), (9, 3209880), (10, 2888892), (12, 2407410), (15, 1925928), (18, 1604940), (20, 1444446), (23, 1256040), (24, 1203705), (27, 1069960), (30, 962964), (36, 802470), (40, 722223), (45, 641976), (46, 628020), (54, 534980), (60, 481482), (69, 418680), (72, 401235), (90, 320988), (92, 314010), (108, 267490), (115, 251208), (120, 240741), (135, 213992), (138, 209340), (180, 160494), (184, 157005), (207, 139560), (216, 133745), (230, 125604), (270, 106996), (276, 104670), (345, 83736), (360, 80247), (414, 69780), (460, 62802), (540, 53498), (552, 52335), (621, 46520), (690, 41868), (828, 34890), (920, 31401), (1035, 27912), (1080, 26749), (1163, 24840), (1242, 23260), (1380, 20934), (1656, 17445), (2070, 13956), (2326, 12420), (2484, 11630), (2760, 10467), (3105, 9304), (3489, 8280), (4140, 6978), (4652, 6210), (4968, 5815)]