20840470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 46158336

約数和(自身を除く): 25317866

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 83, 85, 119, 166, 170, 211, 238, 415, 422, 581, 595, 830, 1055, 1162, 1190, 1411, 1477, 2110, 2822, 2905, 2954, 3587, 5810, 7055, 7174, 7385, 9877, 14110, 14770, 17513, 17935, 19754, 25109, 35026, 35870, 49385, 50218, 87565, 98770, 122591, 125545, 175130, 245182, 251090, 297721, 595442, 612955, 1225910, 1488605, 2084047, 2977210, 4168094, 10420235, 20840470]

約数ペア:

[(1, 20840470), (2, 10420235), (5, 4168094), (7, 2977210), (10, 2084047), (14, 1488605), (17, 1225910), (34, 612955), (35, 595442), (70, 297721), (83, 251090), (85, 245182), (119, 175130), (166, 125545), (170, 122591), (211, 98770), (238, 87565), (415, 50218), (422, 49385), (581, 35870), (595, 35026), (830, 25109), (1055, 19754), (1162, 17935), (1190, 17513), (1411, 14770), (1477, 14110), (2110, 9877), (2822, 7385), (2905, 7174), (2954, 7055), (3587, 5810)]