256380348

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{631}}^1\times {\mathrm{691}}^1$

素因数の和:1343

約数の個数: 72

約数和(自身を含む): 698001024

約数和(自身を除く): 441620676

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 631, 691, 1262, 1382, 1893, 2073, 2524, 2764, 3786, 4146, 4417, 4837, 7572, 8292, 8834, 9674, 13251, 14511, 17668, 19348, 26502, 29022, 30919, 33859, 53004, 58044, 61838, 67718, 92757, 101577, 123676, 135436, 185514, 203154, 371028, 406308, 436021, 872042, 1308063, 1744084, 2616126, 3052147, 5232252, 6104294, 9156441, 12208588, 18312882, 21365029, 36625764, 42730058, 64095087, 85460116, 128190174, 256380348]

約数ペア:

[(1, 256380348), (2, 128190174), (3, 85460116), (4, 64095087), (6, 42730058), (7, 36625764), (12, 21365029), (14, 18312882), (21, 12208588), (28, 9156441), (42, 6104294), (49, 5232252), (84, 3052147), (98, 2616126), (147, 1744084), (196, 1308063), (294, 872042), (588, 436021), (631, 406308), (691, 371028), (1262, 203154), (1382, 185514), (1893, 135436), (2073, 123676), (2524, 101577), (2764, 92757), (3786, 67718), (4146, 61838), (4417, 58044), (4837, 53004), (7572, 33859), (8292, 30919), (8834, 29022), (9674, 26502), (13251, 19348), (14511, 17668)]