16585480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 39816000

約数和(自身を除く): 23230520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 139, 152, 157, 190, 278, 314, 380, 556, 628, 695, 760, 785, 1112, 1256, 1390, 1570, 2641, 2780, 2983, 3140, 5282, 5560, 5966, 6280, 10564, 11932, 13205, 14915, 21128, 21823, 23864, 26410, 29830, 43646, 52820, 59660, 87292, 105640, 109115, 119320, 174584, 218230, 414637, 436460, 829274, 872920, 1658548, 2073185, 3317096, 4146370, 8292740, 16585480]

約数ペア:

[(1, 16585480), (2, 8292740), (4, 4146370), (5, 3317096), (8, 2073185), (10, 1658548), (19, 872920), (20, 829274), (38, 436460), (40, 414637), (76, 218230), (95, 174584), (139, 119320), (152, 109115), (157, 105640), (190, 87292), (278, 59660), (314, 52820), (380, 43646), (556, 29830), (628, 26410), (695, 23864), (760, 21823), (785, 21128), (1112, 14915), (1256, 13205), (1390, 11932), (1570, 10564), (2641, 6280), (2780, 5966), (2983, 5560), (3140, 5282)]