28696620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1861}}^1$

素因数の和:2130

約数の個数: 48

約数和(自身を含む): 80706528

約数和(自身を除く): 52009908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 257, 514, 771, 1028, 1285, 1542, 1861, 2570, 3084, 3722, 3855, 5140, 5583, 7444, 7710, 9305, 11166, 15420, 18610, 22332, 27915, 37220, 55830, 111660, 478277, 956554, 1434831, 1913108, 2391385, 2869662, 4782770, 5739324, 7174155, 9565540, 14348310, 28696620]

約数ペア:

[(1, 28696620), (2, 14348310), (3, 9565540), (4, 7174155), (5, 5739324), (6, 4782770), (10, 2869662), (12, 2391385), (15, 1913108), (20, 1434831), (30, 956554), (60, 478277), (257, 111660), (514, 55830), (771, 37220), (1028, 27915), (1285, 22332), (1542, 18610), (1861, 15420), (2570, 11166), (3084, 9305), (3722, 7710), (3855, 7444), (5140, 5583)]