161245560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1381}}^1$

素因数の和:1541

約数の個数: 128

約数和(自身を含む): 557222400

約数和(自身を除く): 395976840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 139, 140, 168, 210, 278, 280, 417, 420, 556, 695, 834, 840, 973, 1112, 1381, 1390, 1668, 1946, 2085, 2762, 2780, 2919, 3336, 3892, 4143, 4170, 4865, 5524, 5560, 5838, 6905, 7784, 8286, 8340, 9667, 9730, 11048, 11676, 13810, 14595, 16572, 16680, 19334, 19460, 20715, 23352, 27620, 29001, 29190, 33144, 38668, 38920, 41430, 48335, 55240, 58002, 58380, 77336, 82860, 96670, 116004, 116760, 145005, 165720, 191959, 193340, 232008, 290010, 383918, 386680, 575877, 580020, 767836, 959795, 1151754, 1160040, 1343713, 1535672, 1919590, 2303508, 2687426, 2879385, 3839180, 4031139, 4607016, 5374852, 5758770, 6718565, 7678360, 8062278, 10749704, 11517540, 13437130, 16124556, 20155695, 23035080, 26874260, 32249112, 40311390, 53748520, 80622780, 161245560]

約数ペア:

[(1, 161245560), (2, 80622780), (3, 53748520), (4, 40311390), (5, 32249112), (6, 26874260), (7, 23035080), (8, 20155695), (10, 16124556), (12, 13437130), (14, 11517540), (15, 10749704), (20, 8062278), (21, 7678360), (24, 6718565), (28, 5758770), (30, 5374852), (35, 4607016), (40, 4031139), (42, 3839180), (56, 2879385), (60, 2687426), (70, 2303508), (84, 1919590), (105, 1535672), (120, 1343713), (139, 1160040), (140, 1151754), (168, 959795), (210, 767836), (278, 580020), (280, 575877), (417, 386680), (420, 383918), (556, 290010), (695, 232008), (834, 193340), (840, 191959), (973, 165720), (1112, 145005), (1381, 116760), (1390, 116004), (1668, 96670), (1946, 82860), (2085, 77336), (2762, 58380), (2780, 58002), (2919, 55240), (3336, 48335), (3892, 41430), (4143, 38920), (4170, 38668), (4865, 33144), (5524, 29190), (5560, 29001), (5838, 27620), (6905, 23352), (7784, 20715), (8286, 19460), (8340, 19334), (9667, 16680), (9730, 16572), (11048, 14595), (11676, 13810)]