256489488

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{25087}}^1$

素因数の和:25172

約数の個数: 60

約数和(自身を含む): 727953408

約数和(自身を除く): 471463920

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 639, 852, 1136, 1278, 1704, 2556, 3408, 5112, 10224, 25087, 50174, 75261, 100348, 150522, 200696, 225783, 301044, 401392, 451566, 602088, 903132, 1204176, 1781177, 1806264, 3562354, 3612528, 5343531, 7124708, 10687062, 14249416, 16030593, 21374124, 28498832, 32061186, 42748248, 64122372, 85496496, 128244744, 256489488]

約数ペア:

[(1, 256489488), (2, 128244744), (3, 85496496), (4, 64122372), (6, 42748248), (8, 32061186), (9, 28498832), (12, 21374124), (16, 16030593), (18, 14249416), (24, 10687062), (36, 7124708), (48, 5343531), (71, 3612528), (72, 3562354), (142, 1806264), (144, 1781177), (213, 1204176), (284, 903132), (426, 602088), (568, 451566), (639, 401392), (852, 301044), (1136, 225783), (1278, 200696), (1704, 150522), (2556, 100348), (3408, 75261), (5112, 50174), (10224, 25087)]