20857830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{2027}}^1$

素因数の和:2058

約数の個数: 64

約数和(自身を含む): 58406400

約数和(自身を除く): 37548570

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 343, 490, 686, 735, 1029, 1470, 1715, 2027, 2058, 3430, 4054, 5145, 6081, 10135, 10290, 12162, 14189, 20270, 28378, 30405, 42567, 60810, 70945, 85134, 99323, 141890, 198646, 212835, 297969, 425670, 496615, 595938, 695261, 993230, 1390522, 1489845, 2085783, 2979690, 3476305, 4171566, 6952610, 10428915, 20857830]

約数ペア:

[(1, 20857830), (2, 10428915), (3, 6952610), (5, 4171566), (6, 3476305), (7, 2979690), (10, 2085783), (14, 1489845), (15, 1390522), (21, 993230), (30, 695261), (35, 595938), (42, 496615), (49, 425670), (70, 297969), (98, 212835), (105, 198646), (147, 141890), (210, 99323), (245, 85134), (294, 70945), (343, 60810), (490, 42567), (686, 30405), (735, 28378), (1029, 20270), (1470, 14189), (1715, 12162), (2027, 10290), (2058, 10135), (3430, 6081), (4054, 5145)]