28618880

素因数分解:

$2^7\times 5^1\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:577

約数の個数: 64

約数和(自身を含む): 69272280

約数和(自身を除く): 40653400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 320, 388, 461, 485, 640, 776, 922, 970, 1552, 1844, 1940, 2305, 3104, 3688, 3880, 4610, 6208, 7376, 7760, 9220, 12416, 14752, 15520, 18440, 29504, 31040, 36880, 44717, 59008, 62080, 73760, 89434, 147520, 178868, 223585, 295040, 357736, 447170, 715472, 894340, 1430944, 1788680, 2861888, 3577360, 5723776, 7154720, 14309440, 28618880]

約数ペア:

[(1, 28618880), (2, 14309440), (4, 7154720), (5, 5723776), (8, 3577360), (10, 2861888), (16, 1788680), (20, 1430944), (32, 894340), (40, 715472), (64, 447170), (80, 357736), (97, 295040), (128, 223585), (160, 178868), (194, 147520), (320, 89434), (388, 73760), (461, 62080), (485, 59008), (640, 44717), (776, 36880), (922, 31040), (970, 29504), (1552, 18440), (1844, 15520), (1940, 14752), (2305, 12416), (3104, 9220), (3688, 7760), (3880, 7376), (4610, 6208)]