31919420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{419}}^1$

素因数の和:734

約数の個数: 48

約数和(自身を含む): 72606240

約数和(自身を除く): 40686820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 293, 419, 586, 838, 1172, 1465, 1676, 2095, 2930, 3809, 4190, 5447, 5860, 7618, 8380, 10894, 15236, 19045, 21788, 27235, 38090, 54470, 76180, 108940, 122767, 245534, 491068, 613835, 1227670, 1595971, 2455340, 3191942, 6383884, 7979855, 15959710, 31919420]

約数ペア:

[(1, 31919420), (2, 15959710), (4, 7979855), (5, 6383884), (10, 3191942), (13, 2455340), (20, 1595971), (26, 1227670), (52, 613835), (65, 491068), (130, 245534), (260, 122767), (293, 108940), (419, 76180), (586, 54470), (838, 38090), (1172, 27235), (1465, 21788), (1676, 19045), (2095, 15236), (2930, 10894), (3809, 8380), (4190, 7618), (5447, 5860)]