163661820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20509}}^1$

素因数の和:20547

約数の個数: 96

約数和(自身を含む): 551308800

約数和(自身を除く): 387646980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 20509, 41018, 61527, 82036, 102545, 123054, 143563, 205090, 246108, 287126, 307635, 389671, 410180, 430689, 574252, 615270, 717815, 779342, 861378, 1169013, 1230540, 1435630, 1558684, 1722756, 1948355, 2153445, 2338026, 2727697, 2871260, 3896710, 4306890, 4676052, 5455394, 5845065, 7793420, 8183091, 8613780, 10910788, 11690130, 13638485, 16366182, 23380260, 27276970, 32732364, 40915455, 54553940, 81830910, 163661820]

約数ペア:

[(1, 163661820), (2, 81830910), (3, 54553940), (4, 40915455), (5, 32732364), (6, 27276970), (7, 23380260), (10, 16366182), (12, 13638485), (14, 11690130), (15, 10910788), (19, 8613780), (20, 8183091), (21, 7793420), (28, 5845065), (30, 5455394), (35, 4676052), (38, 4306890), (42, 3896710), (57, 2871260), (60, 2727697), (70, 2338026), (76, 2153445), (84, 1948355), (95, 1722756), (105, 1558684), (114, 1435630), (133, 1230540), (140, 1169013), (190, 861378), (210, 779342), (228, 717815), (266, 615270), (285, 574252), (380, 430689), (399, 410180), (420, 389671), (532, 307635), (570, 287126), (665, 246108), (798, 205090), (1140, 143563), (1330, 123054), (1596, 102545), (1995, 82036), (2660, 61527), (3990, 41018), (7980, 20509)]