20185858

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 20456702

約数列:

[1, 2, 7, 11, 14, 22, 23, 41, 46, 77, 82, 139, 154, 161, 253, 278, 287, 322, 451, 506, 574, 902, 943, 973, 1529, 1771, 1886, 1946, 3058, 3157, 3197, 3542, 5699, 6314, 6394, 6601, 10373, 10703, 11398, 13202, 20746, 21406, 22379, 35167, 39893, 44758, 62689, 70334, 72611, 79786, 125378, 131077, 145222, 246169, 262154, 438823, 492338, 877646, 917539, 1441847, 1835078, 2883694, 10092929, 20185858]

約数ペア:

[(1, 20185858), (2, 10092929), (7, 2883694), (11, 1835078), (14, 1441847), (22, 917539), (23, 877646), (41, 492338), (46, 438823), (77, 262154), (82, 246169), (139, 145222), (154, 131077), (161, 125378), (253, 79786), (278, 72611), (287, 70334), (322, 62689), (451, 44758), (506, 39893), (574, 35167), (902, 22379), (943, 21406), (973, 20746), (1529, 13202), (1771, 11398), (1886, 10703), (1946, 10373), (3058, 6601), (3157, 6394), (3197, 6314), (3542, 5699)]