21575040

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:700

約数の個数: 128

約数和(自身を含む): 72925920

約数和(自身を除く): 51350880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 272, 320, 340, 384, 408, 480, 510, 544, 640, 661, 680, 816, 960, 1020, 1088, 1322, 1360, 1632, 1920, 1983, 2040, 2176, 2644, 2720, 3264, 3305, 3966, 4080, 5288, 5440, 6528, 6610, 7932, 8160, 9915, 10576, 10880, 11237, 13220, 15864, 16320, 19830, 21152, 22474, 26440, 31728, 32640, 33711, 39660, 42304, 44948, 52880, 56185, 63456, 67422, 79320, 84608, 89896, 105760, 112370, 126912, 134844, 158640, 168555, 179792, 211520, 224740, 253824, 269688, 317280, 337110, 359584, 423040, 449480, 539376, 634560, 674220, 719168, 898960, 1078752, 1269120, 1348440, 1438336, 1797920, 2157504, 2696880, 3595840, 4315008, 5393760, 7191680, 10787520, 21575040]

約数ペア:

[(1, 21575040), (2, 10787520), (3, 7191680), (4, 5393760), (5, 4315008), (6, 3595840), (8, 2696880), (10, 2157504), (12, 1797920), (15, 1438336), (16, 1348440), (17, 1269120), (20, 1078752), (24, 898960), (30, 719168), (32, 674220), (34, 634560), (40, 539376), (48, 449480), (51, 423040), (60, 359584), (64, 337110), (68, 317280), (80, 269688), (85, 253824), (96, 224740), (102, 211520), (120, 179792), (128, 168555), (136, 158640), (160, 134844), (170, 126912), (192, 112370), (204, 105760), (240, 89896), (255, 84608), (272, 79320), (320, 67422), (340, 63456), (384, 56185), (408, 52880), (480, 44948), (510, 42304), (544, 39660), (640, 33711), (661, 32640), (680, 31728), (816, 26440), (960, 22474), (1020, 21152), (1088, 19830), (1322, 16320), (1360, 15864), (1632, 13220), (1920, 11237), (1983, 10880), (2040, 10576), (2176, 9915), (2644, 8160), (2720, 7932), (3264, 6610), (3305, 6528), (3966, 5440), (4080, 5288)]