388753456

素因数分解:

$2^4\times 7^3\times {\mathrm{13}}^1\times {\mathrm{5449}}^1$

素因数の和:5491

約数の個数: 80

約数和(自身を含む): 946120000

約数和(自身を除く): 557366544

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 343, 364, 392, 637, 686, 728, 784, 1274, 1372, 1456, 2548, 2744, 4459, 5096, 5449, 5488, 8918, 10192, 10898, 17836, 21796, 35672, 38143, 43592, 70837, 71344, 76286, 87184, 141674, 152572, 267001, 283348, 305144, 495859, 534002, 566696, 610288, 991718, 1068004, 1133392, 1869007, 1983436, 2136008, 3471013, 3738014, 3966872, 4272016, 6942026, 7476028, 7933744, 13884052, 14952056, 24297091, 27768104, 29904112, 48594182, 55536208, 97188364, 194376728, 388753456]

約数ペア:

[(1, 388753456), (2, 194376728), (4, 97188364), (7, 55536208), (8, 48594182), (13, 29904112), (14, 27768104), (16, 24297091), (26, 14952056), (28, 13884052), (49, 7933744), (52, 7476028), (56, 6942026), (91, 4272016), (98, 3966872), (104, 3738014), (112, 3471013), (182, 2136008), (196, 1983436), (208, 1869007), (343, 1133392), (364, 1068004), (392, 991718), (637, 610288), (686, 566696), (728, 534002), (784, 495859), (1274, 305144), (1372, 283348), (1456, 267001), (2548, 152572), (2744, 141674), (4459, 87184), (5096, 76286), (5449, 71344), (5488, 70837), (8918, 43592), (10192, 38143), (10898, 35672), (17836, 21796)]