19751270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 44914176

約数和(自身を除く): 25162906

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 113, 154, 226, 227, 385, 454, 565, 770, 791, 1130, 1135, 1243, 1582, 1589, 2270, 2486, 2497, 3178, 3955, 4994, 6215, 7910, 7945, 8701, 12430, 12485, 15890, 17402, 17479, 24970, 25651, 34958, 43505, 51302, 87010, 87395, 128255, 174790, 179557, 256510, 282161, 359114, 564322, 897785, 1410805, 1795570, 1975127, 2821610, 3950254, 9875635, 19751270]

約数ペア:

[(1, 19751270), (2, 9875635), (5, 3950254), (7, 2821610), (10, 1975127), (11, 1795570), (14, 1410805), (22, 897785), (35, 564322), (55, 359114), (70, 282161), (77, 256510), (110, 179557), (113, 174790), (154, 128255), (226, 87395), (227, 87010), (385, 51302), (454, 43505), (565, 34958), (770, 25651), (791, 24970), (1130, 17479), (1135, 17402), (1243, 15890), (1582, 12485), (1589, 12430), (2270, 8701), (2486, 7945), (2497, 7910), (3178, 6215), (3955, 4994)]