21577080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1511}}^1$

素因数の和:1549

約数の個数: 128

約数和(自身を含む): 78382080

約数和(自身を除く): 56805000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1511, 1785, 2040, 2380, 2856, 3022, 3570, 4533, 4760, 6044, 7140, 7555, 9066, 10577, 12088, 14280, 15110, 18132, 21154, 22665, 25687, 30220, 31731, 36264, 42308, 45330, 51374, 52885, 60440, 63462, 77061, 84616, 90660, 102748, 105770, 126924, 128435, 154122, 158655, 179809, 181320, 205496, 211540, 253848, 256870, 308244, 317310, 359618, 385305, 423080, 513740, 539427, 616488, 634620, 719236, 770610, 899045, 1027480, 1078854, 1269240, 1438472, 1541220, 1798090, 2157708, 2697135, 3082440, 3596180, 4315416, 5394270, 7192360, 10788540, 21577080]

約数ペア:

[(1, 21577080), (2, 10788540), (3, 7192360), (4, 5394270), (5, 4315416), (6, 3596180), (7, 3082440), (8, 2697135), (10, 2157708), (12, 1798090), (14, 1541220), (15, 1438472), (17, 1269240), (20, 1078854), (21, 1027480), (24, 899045), (28, 770610), (30, 719236), (34, 634620), (35, 616488), (40, 539427), (42, 513740), (51, 423080), (56, 385305), (60, 359618), (68, 317310), (70, 308244), (84, 256870), (85, 253848), (102, 211540), (105, 205496), (119, 181320), (120, 179809), (136, 158655), (140, 154122), (168, 128435), (170, 126924), (204, 105770), (210, 102748), (238, 90660), (255, 84616), (280, 77061), (340, 63462), (357, 60440), (408, 52885), (420, 51374), (476, 45330), (510, 42308), (595, 36264), (680, 31731), (714, 30220), (840, 25687), (952, 22665), (1020, 21154), (1190, 18132), (1428, 15110), (1511, 14280), (1785, 12088), (2040, 10577), (2380, 9066), (2856, 7555), (3022, 7140), (3570, 6044), (4533, 4760)]