27856880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20483}}^1$

素因数の和:20513

約数の個数: 40

約数和(自身を含む): 68580432

約数和(自身を除く): 40723552

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 20483, 40966, 81932, 102415, 163864, 204830, 327728, 348211, 409660, 696422, 819320, 1392844, 1638640, 1741055, 2785688, 3482110, 5571376, 6964220, 13928440, 27856880]

約数ペア:

[(1, 27856880), (2, 13928440), (4, 6964220), (5, 5571376), (8, 3482110), (10, 2785688), (16, 1741055), (17, 1638640), (20, 1392844), (34, 819320), (40, 696422), (68, 409660), (80, 348211), (85, 327728), (136, 204830), (170, 163864), (272, 102415), (340, 81932), (680, 40966), (1360, 20483)]