81814400

素因数分解:

$2^7\times 5^2\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:752

約数の個数: 96

約数和(自身を含む): 207869880

約数和(自身を除く): 126055480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 37, 40, 50, 64, 74, 80, 100, 128, 148, 160, 185, 200, 296, 320, 370, 400, 592, 640, 691, 740, 800, 925, 1184, 1382, 1480, 1600, 1850, 2368, 2764, 2960, 3200, 3455, 3700, 4736, 5528, 5920, 6910, 7400, 11056, 11840, 13820, 14800, 17275, 22112, 23680, 25567, 27640, 29600, 34550, 44224, 51134, 55280, 59200, 69100, 88448, 102268, 110560, 118400, 127835, 138200, 204536, 221120, 255670, 276400, 409072, 442240, 511340, 552800, 639175, 818144, 1022680, 1105600, 1278350, 1636288, 2045360, 2211200, 2556700, 3272576, 4090720, 5113400, 8181440, 10226800, 16362880, 20453600, 40907200, 81814400]

約数ペア:

[(1, 81814400), (2, 40907200), (4, 20453600), (5, 16362880), (8, 10226800), (10, 8181440), (16, 5113400), (20, 4090720), (25, 3272576), (32, 2556700), (37, 2211200), (40, 2045360), (50, 1636288), (64, 1278350), (74, 1105600), (80, 1022680), (100, 818144), (128, 639175), (148, 552800), (160, 511340), (185, 442240), (200, 409072), (296, 276400), (320, 255670), (370, 221120), (400, 204536), (592, 138200), (640, 127835), (691, 118400), (740, 110560), (800, 102268), (925, 88448), (1184, 69100), (1382, 59200), (1480, 55280), (1600, 51134), (1850, 44224), (2368, 34550), (2764, 29600), (2960, 27640), (3200, 25567), (3455, 23680), (3700, 22112), (4736, 17275), (5528, 14800), (5920, 13820), (6910, 11840), (7400, 11056)]