20390880

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1847}}^1$

素因数の和:1888

約数の個数: 96

約数和(自身を含む): 67060224

約数和(自身を除く): 46669344

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 92, 96, 115, 120, 138, 160, 184, 230, 240, 276, 345, 368, 460, 480, 552, 690, 736, 920, 1104, 1380, 1840, 1847, 2208, 2760, 3680, 3694, 5520, 5541, 7388, 9235, 11040, 11082, 14776, 18470, 22164, 27705, 29552, 36940, 42481, 44328, 55410, 59104, 73880, 84962, 88656, 110820, 127443, 147760, 169924, 177312, 212405, 221640, 254886, 295520, 339848, 424810, 443280, 509772, 637215, 679696, 849620, 886560, 1019544, 1274430, 1359392, 1699240, 2039088, 2548860, 3398480, 4078176, 5097720, 6796960, 10195440, 20390880]

約数ペア:

[(1, 20390880), (2, 10195440), (3, 6796960), (4, 5097720), (5, 4078176), (6, 3398480), (8, 2548860), (10, 2039088), (12, 1699240), (15, 1359392), (16, 1274430), (20, 1019544), (23, 886560), (24, 849620), (30, 679696), (32, 637215), (40, 509772), (46, 443280), (48, 424810), (60, 339848), (69, 295520), (80, 254886), (92, 221640), (96, 212405), (115, 177312), (120, 169924), (138, 147760), (160, 127443), (184, 110820), (230, 88656), (240, 84962), (276, 73880), (345, 59104), (368, 55410), (460, 44328), (480, 42481), (552, 36940), (690, 29552), (736, 27705), (920, 22164), (1104, 18470), (1380, 14776), (1840, 11082), (1847, 11040), (2208, 9235), (2760, 7388), (3680, 5541), (3694, 5520)]