221591480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{1609}}^1$

素因数の和:1944

約数の個数: 64

約数和(自身を含む): 545983200

約数和(自身を除く): 324391720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 313, 440, 626, 1252, 1565, 1609, 2504, 3130, 3218, 3443, 6260, 6436, 6886, 8045, 12520, 12872, 13772, 16090, 17215, 17699, 27544, 32180, 34430, 35398, 64360, 68860, 70796, 88495, 137720, 141592, 176990, 353980, 503617, 707960, 1007234, 2014468, 2518085, 4028936, 5036170, 5539787, 10072340, 11079574, 20144680, 22159148, 27698935, 44318296, 55397870, 110795740, 221591480]

約数ペア:

[(1, 221591480), (2, 110795740), (4, 55397870), (5, 44318296), (8, 27698935), (10, 22159148), (11, 20144680), (20, 11079574), (22, 10072340), (40, 5539787), (44, 5036170), (55, 4028936), (88, 2518085), (110, 2014468), (220, 1007234), (313, 707960), (440, 503617), (626, 353980), (1252, 176990), (1565, 141592), (1609, 137720), (2504, 88495), (3130, 70796), (3218, 68860), (3443, 64360), (6260, 35398), (6436, 34430), (6886, 32180), (8045, 27544), (12520, 17699), (12872, 17215), (13772, 16090)]