39644820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{857}}^1$

素因数の和:1129

約数の個数: 72

約数和(自身を含む): 120864744

約数和(自身を除く): 81219924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 257, 514, 771, 857, 1028, 1285, 1542, 1714, 2313, 2570, 2571, 3084, 3428, 3855, 4285, 4626, 5140, 5142, 7710, 7713, 8570, 9252, 10284, 11565, 12855, 15420, 15426, 17140, 23130, 25710, 30852, 38565, 46260, 51420, 77130, 154260, 220249, 440498, 660747, 880996, 1101245, 1321494, 1982241, 2202490, 2642988, 3303735, 3964482, 4404980, 6607470, 7928964, 9911205, 13214940, 19822410, 39644820]

約数ペア:

[(1, 39644820), (2, 19822410), (3, 13214940), (4, 9911205), (5, 7928964), (6, 6607470), (9, 4404980), (10, 3964482), (12, 3303735), (15, 2642988), (18, 2202490), (20, 1982241), (30, 1321494), (36, 1101245), (45, 880996), (60, 660747), (90, 440498), (180, 220249), (257, 154260), (514, 77130), (771, 51420), (857, 46260), (1028, 38565), (1285, 30852), (1542, 25710), (1714, 23130), (2313, 17140), (2570, 15426), (2571, 15420), (3084, 12855), (3428, 11565), (3855, 10284), (4285, 9252), (4626, 8570), (5140, 7713), (5142, 7710)]