20099240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3121}}^1$

素因数の和:3162

約数の個数: 64

約数和(自身を含む): 53948160

約数和(自身を除く): 33848920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3121, 3220, 6242, 6440, 12484, 15605, 21847, 24968, 31210, 43694, 62420, 71783, 87388, 109235, 124840, 143566, 174776, 218470, 287132, 358915, 436940, 502481, 574264, 717830, 873880, 1004962, 1435660, 2009924, 2512405, 2871320, 4019848, 5024810, 10049620, 20099240]

約数ペア:

[(1, 20099240), (2, 10049620), (4, 5024810), (5, 4019848), (7, 2871320), (8, 2512405), (10, 2009924), (14, 1435660), (20, 1004962), (23, 873880), (28, 717830), (35, 574264), (40, 502481), (46, 436940), (56, 358915), (70, 287132), (92, 218470), (115, 174776), (140, 143566), (161, 124840), (184, 109235), (230, 87388), (280, 71783), (322, 62420), (460, 43694), (644, 31210), (805, 24968), (920, 21847), (1288, 15605), (1610, 12484), (3121, 6440), (3220, 6242)]