18555680

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{811}}^1$

素因数の和:850

約数の個数: 96

約数和(自身を含む): 51565248

約数和(自身を除く): 33009568

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 715, 811, 880, 1040, 1144, 1430, 1622, 1760, 2080, 2288, 2860, 3244, 4055, 4576, 5720, 6488, 8110, 8921, 10543, 11440, 12976, 16220, 17842, 21086, 22880, 25952, 32440, 35684, 42172, 44605, 52715, 64880, 71368, 84344, 89210, 105430, 115973, 129760, 142736, 168688, 178420, 210860, 231946, 285472, 337376, 356840, 421720, 463892, 579865, 713680, 843440, 927784, 1159730, 1427360, 1686880, 1855568, 2319460, 3711136, 4638920, 9277840, 18555680]

約数ペア:

[(1, 18555680), (2, 9277840), (4, 4638920), (5, 3711136), (8, 2319460), (10, 1855568), (11, 1686880), (13, 1427360), (16, 1159730), (20, 927784), (22, 843440), (26, 713680), (32, 579865), (40, 463892), (44, 421720), (52, 356840), (55, 337376), (65, 285472), (80, 231946), (88, 210860), (104, 178420), (110, 168688), (130, 142736), (143, 129760), (160, 115973), (176, 105430), (208, 89210), (220, 84344), (260, 71368), (286, 64880), (352, 52715), (416, 44605), (440, 42172), (520, 35684), (572, 32440), (715, 25952), (811, 22880), (880, 21086), (1040, 17842), (1144, 16220), (1430, 12976), (1622, 11440), (1760, 10543), (2080, 8921), (2288, 8110), (2860, 6488), (3244, 5720), (4055, 4576)]