15998720

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:481

約数の個数: 72

約数和(自身を含む): 39735360

約数和(自身を除く): 23736640

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, 431, 464, 580, 640, 862, 928, 1160, 1280, 1724, 1856, 2155, 2320, 3448, 3712, 4310, 4640, 6896, 7424, 8620, 9280, 12499, 13792, 17240, 18560, 24998, 27584, 34480, 37120, 49996, 55168, 62495, 68960, 99992, 110336, 124990, 137920, 199984, 249980, 275840, 399968, 499960, 551680, 799936, 999920, 1599872, 1999840, 3199744, 3999680, 7999360, 15998720]

約数ペア:

[(1, 15998720), (2, 7999360), (4, 3999680), (5, 3199744), (8, 1999840), (10, 1599872), (16, 999920), (20, 799936), (29, 551680), (32, 499960), (40, 399968), (58, 275840), (64, 249980), (80, 199984), (116, 137920), (128, 124990), (145, 110336), (160, 99992), (232, 68960), (256, 62495), (290, 55168), (320, 49996), (431, 37120), (464, 34480), (580, 27584), (640, 24998), (862, 18560), (928, 17240), (1160, 13792), (1280, 12499), (1724, 9280), (1856, 8620), (2155, 7424), (2320, 6896), (3448, 4640), (3712, 4310)]