202120840

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1\times {\mathrm{461}}^1$

素因数の和:682

約数の個数: 64

約数和(自身を含む): 464531760

約数和(自身を除く): 262410920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 113, 194, 226, 388, 452, 461, 485, 565, 776, 904, 922, 970, 1130, 1844, 1940, 2260, 2305, 3688, 3880, 4520, 4610, 9220, 10961, 18440, 21922, 43844, 44717, 52093, 54805, 87688, 89434, 104186, 109610, 178868, 208372, 219220, 223585, 260465, 357736, 416744, 438440, 447170, 520930, 894340, 1041860, 1788680, 2083720, 5053021, 10106042, 20212084, 25265105, 40424168, 50530210, 101060420, 202120840]

約数ペア:

[(1, 202120840), (2, 101060420), (4, 50530210), (5, 40424168), (8, 25265105), (10, 20212084), (20, 10106042), (40, 5053021), (97, 2083720), (113, 1788680), (194, 1041860), (226, 894340), (388, 520930), (452, 447170), (461, 438440), (485, 416744), (565, 357736), (776, 260465), (904, 223585), (922, 219220), (970, 208372), (1130, 178868), (1844, 109610), (1940, 104186), (2260, 89434), (2305, 87688), (3688, 54805), (3880, 52093), (4520, 44717), (4610, 43844), (9220, 21922), (10961, 18440)]