381928428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{2909}}^1$

素因数の和:3447

約数の個数: 72

約数和(自身を含む): 1105846560

約数和(自身を除く): 723918132

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 521, 1042, 1563, 2084, 2909, 3126, 3647, 4689, 5818, 6252, 7294, 8727, 9378, 10941, 11636, 14588, 17454, 18756, 20363, 21882, 26181, 32823, 34908, 40726, 43764, 52362, 61089, 65646, 81452, 104724, 122178, 131292, 183267, 244356, 366534, 733068, 1515589, 3031178, 4546767, 6062356, 9093534, 10609123, 13640301, 18187068, 21218246, 27280602, 31827369, 42436492, 54561204, 63654738, 95482107, 127309476, 190964214, 381928428]

約数ペア:

[(1, 381928428), (2, 190964214), (3, 127309476), (4, 95482107), (6, 63654738), (7, 54561204), (9, 42436492), (12, 31827369), (14, 27280602), (18, 21218246), (21, 18187068), (28, 13640301), (36, 10609123), (42, 9093534), (63, 6062356), (84, 4546767), (126, 3031178), (252, 1515589), (521, 733068), (1042, 366534), (1563, 244356), (2084, 183267), (2909, 131292), (3126, 122178), (3647, 104724), (4689, 81452), (5818, 65646), (6252, 61089), (7294, 52362), (8727, 43764), (9378, 40726), (10941, 34908), (11636, 32823), (14588, 26181), (17454, 21882), (18756, 20363)]