31069920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{1321}}^1$

素因数の和:1353

約数の個数: 144

約数和(自身を含む): 113935248

約数和(自身を除く): 82865328

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, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1321, 1470, 1568, 1680, 1960, 2352, 2642, 2940, 3360, 3920, 3963, 4704, 5284, 5880, 6605, 7840, 7926, 9247, 10568, 11760, 13210, 15852, 18494, 19815, 21136, 23520, 26420, 27741, 31704, 36988, 39630, 42272, 46235, 52840, 55482, 63408, 64729, 73976, 79260, 92470, 105680, 110964, 126816, 129458, 138705, 147952, 158520, 184940, 194187, 211360, 221928, 258916, 277410, 295904, 317040, 323645, 369880, 388374, 443856, 517832, 554820, 634080, 647290, 739760, 776748, 887712, 970935, 1035664, 1109640, 1294580, 1479520, 1553496, 1941870, 2071328, 2219280, 2589160, 3106992, 3883740, 4438560, 5178320, 6213984, 7767480, 10356640, 15534960, 31069920]

約数ペア:

[(1, 31069920), (2, 15534960), (3, 10356640), (4, 7767480), (5, 6213984), (6, 5178320), (7, 4438560), (8, 3883740), (10, 3106992), (12, 2589160), (14, 2219280), (15, 2071328), (16, 1941870), (20, 1553496), (21, 1479520), (24, 1294580), (28, 1109640), (30, 1035664), (32, 970935), (35, 887712), (40, 776748), (42, 739760), (48, 647290), (49, 634080), (56, 554820), (60, 517832), (70, 443856), (80, 388374), (84, 369880), (96, 323645), (98, 317040), (105, 295904), (112, 277410), (120, 258916), (140, 221928), (147, 211360), (160, 194187), (168, 184940), (196, 158520), (210, 147952), (224, 138705), (240, 129458), (245, 126816), (280, 110964), (294, 105680), (336, 92470), (392, 79260), (420, 73976), (480, 64729), (490, 63408), (560, 55482), (588, 52840), (672, 46235), (735, 42272), (784, 39630), (840, 36988), (980, 31704), (1120, 27741), (1176, 26420), (1321, 23520), (1470, 21136), (1568, 19815), (1680, 18494), (1960, 15852), (2352, 13210), (2642, 11760), (2940, 10568), (3360, 9247), (3920, 7926), (3963, 7840), (4704, 6605), (5284, 5880)]