21289440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2609}}^1$

素因数の和:2644

約数の個数: 96

約数和(自身を含む): 71033760

約数和(自身を除く): 49744320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 68, 80, 85, 96, 102, 120, 136, 160, 170, 204, 240, 255, 272, 340, 408, 480, 510, 544, 680, 816, 1020, 1360, 1632, 2040, 2609, 2720, 4080, 5218, 7827, 8160, 10436, 13045, 15654, 20872, 26090, 31308, 39135, 41744, 44353, 52180, 62616, 78270, 83488, 88706, 104360, 125232, 133059, 156540, 177412, 208720, 221765, 250464, 266118, 313080, 354824, 417440, 443530, 532236, 626160, 665295, 709648, 887060, 1064472, 1252320, 1330590, 1419296, 1774120, 2128944, 2661180, 3548240, 4257888, 5322360, 7096480, 10644720, 21289440]

約数ペア:

[(1, 21289440), (2, 10644720), (3, 7096480), (4, 5322360), (5, 4257888), (6, 3548240), (8, 2661180), (10, 2128944), (12, 1774120), (15, 1419296), (16, 1330590), (17, 1252320), (20, 1064472), (24, 887060), (30, 709648), (32, 665295), (34, 626160), (40, 532236), (48, 443530), (51, 417440), (60, 354824), (68, 313080), (80, 266118), (85, 250464), (96, 221765), (102, 208720), (120, 177412), (136, 156540), (160, 133059), (170, 125232), (204, 104360), (240, 88706), (255, 83488), (272, 78270), (340, 62616), (408, 52180), (480, 44353), (510, 41744), (544, 39135), (680, 31308), (816, 26090), (1020, 20872), (1360, 15654), (1632, 13045), (2040, 10436), (2609, 8160), (2720, 7827), (4080, 5218)]