18956210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:627

約数の個数: 64

約数和(自身を含む): 43206912

約数和(自身を除く): 24250702

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 37, 65, 70, 74, 91, 130, 182, 185, 259, 370, 455, 481, 518, 563, 910, 962, 1126, 1295, 2405, 2590, 2815, 3367, 3941, 4810, 5630, 6734, 7319, 7882, 14638, 16835, 19705, 20831, 33670, 36595, 39410, 41662, 51233, 73190, 102466, 104155, 145817, 208310, 256165, 270803, 291634, 512330, 541606, 729085, 1354015, 1458170, 1895621, 2708030, 3791242, 9478105, 18956210]

約数ペア:

[(1, 18956210), (2, 9478105), (5, 3791242), (7, 2708030), (10, 1895621), (13, 1458170), (14, 1354015), (26, 729085), (35, 541606), (37, 512330), (65, 291634), (70, 270803), (74, 256165), (91, 208310), (130, 145817), (182, 104155), (185, 102466), (259, 73190), (370, 51233), (455, 41662), (481, 39410), (518, 36595), (563, 33670), (910, 20831), (962, 19705), (1126, 16835), (1295, 14638), (2405, 7882), (2590, 7319), (2815, 6734), (3367, 5630), (3941, 4810)]