21131036360

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1193}}^1\times {\mathrm{1291}}^1$

素因数の和:2516

約数の個数: 128

約数和(自身を含む): 55535328000

約数和(自身を除く): 34404291640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1193, 1291, 1372, 1715, 1960, 2386, 2582, 2744, 3430, 4772, 5164, 5965, 6455, 6860, 8351, 9037, 9544, 10328, 11930, 12910, 13720, 16702, 18074, 23860, 25820, 33404, 36148, 41755, 45185, 47720, 51640, 58457, 63259, 66808, 72296, 83510, 90370, 116914, 126518, 167020, 180740, 233828, 253036, 292285, 316295, 334040, 361480, 409199, 442813, 467656, 506072, 584570, 632590, 818398, 885626, 1169140, 1265180, 1540163, 1636796, 1771252, 2045995, 2214065, 2338280, 2530360, 3080326, 3273592, 3542504, 4091990, 4428130, 6160652, 7700815, 8183980, 8856260, 10781141, 12321304, 15401630, 16367960, 17712520, 21562282, 30803260, 43124564, 53905705, 61606520, 75467987, 86249128, 107811410, 150935974, 215622820, 301871948, 377339935, 431245640, 528275909, 603743896, 754679870, 1056551818, 1509359740, 2113103636, 2641379545, 3018719480, 4226207272, 5282759090, 10565518180, 21131036360]

約数ペア:

[(1, 21131036360), (2, 10565518180), (4, 5282759090), (5, 4226207272), (7, 3018719480), (8, 2641379545), (10, 2113103636), (14, 1509359740), (20, 1056551818), (28, 754679870), (35, 603743896), (40, 528275909), (49, 431245640), (56, 377339935), (70, 301871948), (98, 215622820), (140, 150935974), (196, 107811410), (245, 86249128), (280, 75467987), (343, 61606520), (392, 53905705), (490, 43124564), (686, 30803260), (980, 21562282), (1193, 17712520), (1291, 16367960), (1372, 15401630), (1715, 12321304), (1960, 10781141), (2386, 8856260), (2582, 8183980), (2744, 7700815), (3430, 6160652), (4772, 4428130), (5164, 4091990), (5965, 3542504), (6455, 3273592), (6860, 3080326), (8351, 2530360), (9037, 2338280), (9544, 2214065), (10328, 2045995), (11930, 1771252), (12910, 1636796), (13720, 1540163), (16702, 1265180), (18074, 1169140), (23860, 885626), (25820, 818398), (33404, 632590), (36148, 584570), (41755, 506072), (45185, 467656), (47720, 442813), (51640, 409199), (58457, 361480), (63259, 334040), (66808, 316295), (72296, 292285), (83510, 253036), (90370, 233828), (116914, 180740), (126518, 167020)]