18077440

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 44886240

約数和(自身を除く): 26808800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 464, 487, 580, 640, 928, 974, 1160, 1280, 1856, 1948, 2320, 2435, 3712, 3896, 4640, 4870, 7424, 7792, 9280, 9740, 14123, 15584, 18560, 19480, 28246, 31168, 37120, 38960, 56492, 62336, 70615, 77920, 112984, 124672, 141230, 155840, 225968, 282460, 311680, 451936, 564920, 623360, 903872, 1129840, 1807744, 2259680, 3615488, 4519360, 9038720, 18077440]

約数ペア:

[(1, 18077440), (2, 9038720), (4, 4519360), (5, 3615488), (8, 2259680), (10, 1807744), (16, 1129840), (20, 903872), (29, 623360), (32, 564920), (40, 451936), (58, 311680), (64, 282460), (80, 225968), (116, 155840), (128, 141230), (145, 124672), (160, 112984), (232, 77920), (256, 70615), (290, 62336), (320, 56492), (464, 38960), (487, 37120), (580, 31168), (640, 28246), (928, 19480), (974, 18560), (1160, 15584), (1280, 14123), (1856, 9740), (1948, 9280), (2320, 7792), (2435, 7424), (3712, 4870), (3896, 4640)]