25444952

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 55104000

約数和(自身を除く): 29659048

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 79, 104, 152, 158, 163, 247, 316, 326, 494, 632, 652, 988, 1027, 1304, 1501, 1976, 2054, 2119, 3002, 3097, 4108, 4238, 6004, 6194, 8216, 8476, 12008, 12388, 12877, 16952, 19513, 24776, 25754, 39026, 40261, 51508, 78052, 80522, 103016, 156104, 161044, 167401, 244663, 322088, 334802, 489326, 669604, 978652, 1339208, 1957304, 3180619, 6361238, 12722476, 25444952]

約数ペア:

[(1, 25444952), (2, 12722476), (4, 6361238), (8, 3180619), (13, 1957304), (19, 1339208), (26, 978652), (38, 669604), (52, 489326), (76, 334802), (79, 322088), (104, 244663), (152, 167401), (158, 161044), (163, 156104), (247, 103016), (316, 80522), (326, 78052), (494, 51508), (632, 40261), (652, 39026), (988, 25754), (1027, 24776), (1304, 19513), (1501, 16952), (1976, 12877), (2054, 12388), (2119, 12008), (3002, 8476), (3097, 8216), (4108, 6194), (4238, 6004)]