19911360

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{2963}}^1$

素因数の和:2990

約数の個数: 112

約数和(自身を含む): 72274176

約数和(自身を除く): 52362816

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 2963, 3360, 5926, 6720, 8889, 11852, 14815, 17778, 20741, 23704, 29630, 35556, 41482, 44445, 47408, 59260, 62223, 71112, 82964, 88890, 94816, 103705, 118520, 124446, 142224, 165928, 177780, 189632, 207410, 237040, 248892, 284448, 311115, 331856, 355560, 414820, 474080, 497784, 568896, 622230, 663712, 711120, 829640, 948160, 995568, 1244460, 1327424, 1422240, 1659280, 1991136, 2488920, 2844480, 3318560, 3982272, 4977840, 6637120, 9955680, 19911360]

約数ペア:

[(1, 19911360), (2, 9955680), (3, 6637120), (4, 4977840), (5, 3982272), (6, 3318560), (7, 2844480), (8, 2488920), (10, 1991136), (12, 1659280), (14, 1422240), (15, 1327424), (16, 1244460), (20, 995568), (21, 948160), (24, 829640), (28, 711120), (30, 663712), (32, 622230), (35, 568896), (40, 497784), (42, 474080), (48, 414820), (56, 355560), (60, 331856), (64, 311115), (70, 284448), (80, 248892), (84, 237040), (96, 207410), (105, 189632), (112, 177780), (120, 165928), (140, 142224), (160, 124446), (168, 118520), (192, 103705), (210, 94816), (224, 88890), (240, 82964), (280, 71112), (320, 62223), (336, 59260), (420, 47408), (448, 44445), (480, 41482), (560, 35556), (672, 29630), (840, 23704), (960, 20741), (1120, 17778), (1344, 14815), (1680, 11852), (2240, 8889), (2963, 6720), (3360, 5926)]