20389849600

素因数分解:

$2^9\times 5^2\times {\mathrm{23}}^1\times {\mathrm{69259}}^1$

素因数の和:69310

約数の個数: 120

約数和(自身を含む): 52714617120

約数和(自身を除く): 32324767520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 128, 160, 184, 200, 230, 256, 320, 368, 400, 460, 512, 575, 640, 736, 800, 920, 1150, 1280, 1472, 1600, 1840, 2300, 2560, 2944, 3200, 3680, 4600, 5888, 6400, 7360, 9200, 11776, 12800, 14720, 18400, 29440, 36800, 58880, 69259, 73600, 138518, 147200, 277036, 294400, 346295, 554072, 692590, 1108144, 1385180, 1592957, 1731475, 2216288, 2770360, 3185914, 3462950, 4432576, 5540720, 6371828, 6925900, 7964785, 8865152, 11081440, 12743656, 13851800, 15929570, 17730304, 22162880, 25487312, 27703600, 31859140, 35460608, 39823925, 44325760, 50974624, 55407200, 63718280, 79647850, 88651520, 101949248, 110814400, 127436560, 159295700, 177303040, 203898496, 221628800, 254873120, 318591400, 407796992, 443257600, 509746240, 637182800, 815593984, 886515200, 1019492480, 1274365600, 2038984960, 2548731200, 4077969920, 5097462400, 10194924800, 20389849600]

約数ペア:

[(1, 20389849600), (2, 10194924800), (4, 5097462400), (5, 4077969920), (8, 2548731200), (10, 2038984960), (16, 1274365600), (20, 1019492480), (23, 886515200), (25, 815593984), (32, 637182800), (40, 509746240), (46, 443257600), (50, 407796992), (64, 318591400), (80, 254873120), (92, 221628800), (100, 203898496), (115, 177303040), (128, 159295700), (160, 127436560), (184, 110814400), (200, 101949248), (230, 88651520), (256, 79647850), (320, 63718280), (368, 55407200), (400, 50974624), (460, 44325760), (512, 39823925), (575, 35460608), (640, 31859140), (736, 27703600), (800, 25487312), (920, 22162880), (1150, 17730304), (1280, 15929570), (1472, 13851800), (1600, 12743656), (1840, 11081440), (2300, 8865152), (2560, 7964785), (2944, 6925900), (3200, 6371828), (3680, 5540720), (4600, 4432576), (5888, 3462950), (6400, 3185914), (7360, 2770360), (9200, 2216288), (11776, 1731475), (12800, 1592957), (14720, 1385180), (18400, 1108144), (29440, 692590), (36800, 554072), (58880, 346295), (69259, 294400), (73600, 277036), (138518, 147200)]