28719680

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:268

約数の個数: 112

約数和(自身を含む): 76809600

約数和(自身を除く): 48089920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 110, 160, 164, 176, 199, 205, 220, 320, 328, 352, 398, 410, 440, 451, 656, 704, 796, 820, 880, 902, 995, 1312, 1592, 1640, 1760, 1804, 1990, 2189, 2255, 2624, 3184, 3280, 3520, 3608, 3980, 4378, 4510, 6368, 6560, 7216, 7960, 8159, 8756, 9020, 10945, 12736, 13120, 14432, 15920, 16318, 17512, 18040, 21890, 28864, 31840, 32636, 35024, 36080, 40795, 43780, 63680, 65272, 70048, 72160, 81590, 87560, 89749, 130544, 140096, 144320, 163180, 175120, 179498, 261088, 326360, 350240, 358996, 448745, 522176, 652720, 700480, 717992, 897490, 1305440, 1435984, 1794980, 2610880, 2871968, 3589960, 5743936, 7179920, 14359840, 28719680]

約数ペア:

[(1, 28719680), (2, 14359840), (4, 7179920), (5, 5743936), (8, 3589960), (10, 2871968), (11, 2610880), (16, 1794980), (20, 1435984), (22, 1305440), (32, 897490), (40, 717992), (41, 700480), (44, 652720), (55, 522176), (64, 448745), (80, 358996), (82, 350240), (88, 326360), (110, 261088), (160, 179498), (164, 175120), (176, 163180), (199, 144320), (205, 140096), (220, 130544), (320, 89749), (328, 87560), (352, 81590), (398, 72160), (410, 70048), (440, 65272), (451, 63680), (656, 43780), (704, 40795), (796, 36080), (820, 35024), (880, 32636), (902, 31840), (995, 28864), (1312, 21890), (1592, 18040), (1640, 17512), (1760, 16318), (1804, 15920), (1990, 14432), (2189, 13120), (2255, 12736), (2624, 10945), (3184, 9020), (3280, 8756), (3520, 8159), (3608, 7960), (3980, 7216), (4378, 6560), (4510, 6368)]