20094640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 49782528

約数和(自身を除く): 29687888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 67, 80, 92, 115, 134, 163, 184, 230, 268, 326, 335, 368, 460, 536, 652, 670, 815, 920, 1072, 1304, 1340, 1541, 1630, 1840, 2608, 2680, 3082, 3260, 3749, 5360, 6164, 6520, 7498, 7705, 10921, 12328, 13040, 14996, 15410, 18745, 21842, 24656, 29992, 30820, 37490, 43684, 54605, 59984, 61640, 74980, 87368, 109210, 123280, 149960, 174736, 218420, 251183, 299920, 436840, 502366, 873680, 1004732, 1255915, 2009464, 2511830, 4018928, 5023660, 10047320, 20094640]

約数ペア:

[(1, 20094640), (2, 10047320), (4, 5023660), (5, 4018928), (8, 2511830), (10, 2009464), (16, 1255915), (20, 1004732), (23, 873680), (40, 502366), (46, 436840), (67, 299920), (80, 251183), (92, 218420), (115, 174736), (134, 149960), (163, 123280), (184, 109210), (230, 87368), (268, 74980), (326, 61640), (335, 59984), (368, 54605), (460, 43684), (536, 37490), (652, 30820), (670, 29992), (815, 24656), (920, 21842), (1072, 18745), (1304, 15410), (1340, 14996), (1541, 13040), (1630, 12328), (1840, 10921), (2608, 7705), (2680, 7498), (3082, 6520), (3260, 6164), (3749, 5360)]