18012488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 38814720

約数和(自身を除く): 20802232

約数列:

[1, 2, 4, 8, 13, 26, 31, 37, 52, 62, 74, 104, 124, 148, 151, 248, 296, 302, 403, 481, 604, 806, 962, 1147, 1208, 1612, 1924, 1963, 2294, 3224, 3848, 3926, 4588, 4681, 5587, 7852, 9176, 9362, 11174, 14911, 15704, 18724, 22348, 29822, 37448, 44696, 59644, 60853, 72631, 119288, 121706, 145262, 173197, 243412, 290524, 346394, 486824, 581048, 692788, 1385576, 2251561, 4503122, 9006244, 18012488]

約数ペア:

[(1, 18012488), (2, 9006244), (4, 4503122), (8, 2251561), (13, 1385576), (26, 692788), (31, 581048), (37, 486824), (52, 346394), (62, 290524), (74, 243412), (104, 173197), (124, 145262), (148, 121706), (151, 119288), (248, 72631), (296, 60853), (302, 59644), (403, 44696), (481, 37448), (604, 29822), (806, 22348), (962, 18724), (1147, 15704), (1208, 14911), (1612, 11174), (1924, 9362), (1963, 9176), (2294, 7852), (3224, 5587), (3848, 4681), (3926, 4588)]