25121408

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:545

約数の個数: 64

約数和(自身を含む): 55749120

約数和(自身を除く): 30627712

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 403, 416, 487, 496, 806, 832, 974, 992, 1612, 1664, 1948, 1984, 3224, 3896, 3968, 6331, 6448, 7792, 12662, 12896, 15097, 15584, 25324, 25792, 30194, 31168, 50648, 51584, 60388, 62336, 101296, 120776, 196261, 202592, 241552, 392522, 405184, 483104, 785044, 810368, 966208, 1570088, 1932416, 3140176, 6280352, 12560704, 25121408]

約数ペア:

[(1, 25121408), (2, 12560704), (4, 6280352), (8, 3140176), (13, 1932416), (16, 1570088), (26, 966208), (31, 810368), (32, 785044), (52, 483104), (62, 405184), (64, 392522), (104, 241552), (124, 202592), (128, 196261), (208, 120776), (248, 101296), (403, 62336), (416, 60388), (487, 51584), (496, 50648), (806, 31168), (832, 30194), (974, 25792), (992, 25324), (1612, 15584), (1664, 15097), (1948, 12896), (1984, 12662), (3224, 7792), (3896, 6448), (3968, 6331)]