21362320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1031}}^1$

素因数の和:1088

約数の個数: 80

約数和(自身を含む): 58353408

約数和(自身を除く): 36991088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1031, 1036, 1295, 1480, 2062, 2072, 2590, 2960, 4124, 4144, 5155, 5180, 7217, 8248, 10310, 10360, 14434, 16496, 20620, 20720, 28868, 36085, 38147, 41240, 57736, 72170, 76294, 82480, 115472, 144340, 152588, 190735, 267029, 288680, 305176, 381470, 534058, 577360, 610352, 762940, 1068116, 1335145, 1525880, 2136232, 2670290, 3051760, 4272464, 5340580, 10681160, 21362320]

約数ペア:

[(1, 21362320), (2, 10681160), (4, 5340580), (5, 4272464), (7, 3051760), (8, 2670290), (10, 2136232), (14, 1525880), (16, 1335145), (20, 1068116), (28, 762940), (35, 610352), (37, 577360), (40, 534058), (56, 381470), (70, 305176), (74, 288680), (80, 267029), (112, 190735), (140, 152588), (148, 144340), (185, 115472), (259, 82480), (280, 76294), (296, 72170), (370, 57736), (518, 41240), (560, 38147), (592, 36085), (740, 28868), (1031, 20720), (1036, 20620), (1295, 16496), (1480, 14434), (2062, 10360), (2072, 10310), (2590, 8248), (2960, 7217), (4124, 5180), (4144, 5155)]