28278720

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{1091}}^1$

素因数の和:1120

約数の個数: 140

約数和(自身を含む): 100684584

約数和(自身を除く): 72405864

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 405, 432, 480, 540, 576, 648, 720, 810, 864, 960, 1080, 1091, 1296, 1440, 1620, 1728, 2160, 2182, 2592, 2880, 3240, 3273, 4320, 4364, 5184, 5455, 6480, 6546, 8640, 8728, 9819, 10910, 12960, 13092, 16365, 17456, 19638, 21820, 25920, 26184, 29457, 32730, 34912, 39276, 43640, 49095, 52368, 58914, 65460, 69824, 78552, 87280, 88371, 98190, 104736, 117828, 130920, 147285, 157104, 174560, 176742, 196380, 209472, 235656, 261840, 294570, 314208, 349120, 353484, 392760, 441855, 471312, 523680, 589140, 628416, 706968, 785520, 883710, 942624, 1047360, 1178280, 1413936, 1571040, 1767420, 1885248, 2356560, 2827872, 3142080, 3534840, 4713120, 5655744, 7069680, 9426240, 14139360, 28278720]

約数ペア:

[(1, 28278720), (2, 14139360), (3, 9426240), (4, 7069680), (5, 5655744), (6, 4713120), (8, 3534840), (9, 3142080), (10, 2827872), (12, 2356560), (15, 1885248), (16, 1767420), (18, 1571040), (20, 1413936), (24, 1178280), (27, 1047360), (30, 942624), (32, 883710), (36, 785520), (40, 706968), (45, 628416), (48, 589140), (54, 523680), (60, 471312), (64, 441855), (72, 392760), (80, 353484), (81, 349120), (90, 314208), (96, 294570), (108, 261840), (120, 235656), (135, 209472), (144, 196380), (160, 176742), (162, 174560), (180, 157104), (192, 147285), (216, 130920), (240, 117828), (270, 104736), (288, 98190), (320, 88371), (324, 87280), (360, 78552), (405, 69824), (432, 65460), (480, 58914), (540, 52368), (576, 49095), (648, 43640), (720, 39276), (810, 34912), (864, 32730), (960, 29457), (1080, 26184), (1091, 25920), (1296, 21820), (1440, 19638), (1620, 17456), (1728, 16365), (2160, 13092), (2182, 12960), (2592, 10910), (2880, 9819), (3240, 8728), (3273, 8640), (4320, 6546), (4364, 6480), (5184, 5455)]