20815669880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{267829}}^1$

素因数の和:267936

約数の個数: 64

約数和(自身を含む): 49173588000

約数和(自身を除く): 28357918120

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 67, 116, 134, 145, 232, 268, 290, 335, 536, 580, 670, 1160, 1340, 1943, 2680, 3886, 7772, 9715, 15544, 19430, 38860, 77720, 267829, 535658, 1071316, 1339145, 2142632, 2678290, 5356580, 7767041, 10713160, 15534082, 17944543, 31068164, 35889086, 38835205, 62136328, 71778172, 77670410, 89722715, 143556344, 155340820, 179445430, 310681640, 358890860, 520391747, 717781720, 1040783494, 2081566988, 2601958735, 4163133976, 5203917470, 10407834940, 20815669880]

約数ペア:

[(1, 20815669880), (2, 10407834940), (4, 5203917470), (5, 4163133976), (8, 2601958735), (10, 2081566988), (20, 1040783494), (29, 717781720), (40, 520391747), (58, 358890860), (67, 310681640), (116, 179445430), (134, 155340820), (145, 143556344), (232, 89722715), (268, 77670410), (290, 71778172), (335, 62136328), (536, 38835205), (580, 35889086), (670, 31068164), (1160, 17944543), (1340, 15534082), (1943, 10713160), (2680, 7767041), (3886, 5356580), (7772, 2678290), (9715, 2142632), (15544, 1339145), (19430, 1071316), (38860, 535658), (77720, 267829)]