2891490

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{281}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 8121600

約数和(自身を除く): 5230110

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 281, 294, 343, 490, 562, 686, 735, 843, 1029, 1405, 1470, 1686, 1715, 1967, 2058, 2810, 3430, 3934, 4215, 5145, 5901, 8430, 9835, 10290, 11802, 13769, 19670, 27538, 29505, 41307, 59010, 68845, 82614, 96383, 137690, 192766, 206535, 289149, 413070, 481915, 578298, 963830, 1445745, 2891490]

約数ペア:

[(1, 2891490), (2, 1445745), (3, 963830), (5, 578298), (6, 481915), (7, 413070), (10, 289149), (14, 206535), (15, 192766), (21, 137690), (30, 96383), (35, 82614), (42, 68845), (49, 59010), (70, 41307), (98, 29505), (105, 27538), (147, 19670), (210, 13769), (245, 11802), (281, 10290), (294, 9835), (343, 8430), (490, 5901), (562, 5145), (686, 4215), (735, 3934), (843, 3430), (1029, 2810), (1405, 2058), (1470, 1967), (1686, 1715)]