194966120

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{461}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 448232400

約数和(自身を除く): 253266280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 109, 194, 218, 388, 436, 461, 485, 545, 776, 872, 922, 970, 1090, 1844, 1940, 2180, 2305, 3688, 3880, 4360, 4610, 9220, 10573, 18440, 21146, 42292, 44717, 50249, 52865, 84584, 89434, 100498, 105730, 178868, 200996, 211460, 223585, 251245, 357736, 401992, 422920, 447170, 502490, 894340, 1004980, 1788680, 2009960, 4874153, 9748306, 19496612, 24370765, 38993224, 48741530, 97483060, 194966120]

約数ペア:

[(1, 194966120), (2, 97483060), (4, 48741530), (5, 38993224), (8, 24370765), (10, 19496612), (20, 9748306), (40, 4874153), (97, 2009960), (109, 1788680), (194, 1004980), (218, 894340), (388, 502490), (436, 447170), (461, 422920), (485, 401992), (545, 357736), (776, 251245), (872, 223585), (922, 211460), (970, 200996), (1090, 178868), (1844, 105730), (1940, 100498), (2180, 89434), (2305, 84584), (3688, 52865), (3880, 50249), (4360, 44717), (4610, 42292), (9220, 21146), (10573, 18440)]