18438490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 22204070

約数列:

[1, 2, 5, 7, 10, 14, 29, 31, 35, 58, 62, 70, 145, 155, 203, 217, 290, 293, 310, 406, 434, 586, 899, 1015, 1085, 1465, 1798, 2030, 2051, 2170, 2930, 4102, 4495, 6293, 8497, 8990, 9083, 10255, 12586, 16994, 18166, 20510, 31465, 42485, 45415, 59479, 62930, 63581, 84970, 90830, 118958, 127162, 263407, 297395, 317905, 526814, 594790, 635810, 1317035, 1843849, 2634070, 3687698, 9219245, 18438490]

約数ペア:

[(1, 18438490), (2, 9219245), (5, 3687698), (7, 2634070), (10, 1843849), (14, 1317035), (29, 635810), (31, 594790), (35, 526814), (58, 317905), (62, 297395), (70, 263407), (145, 127162), (155, 118958), (203, 90830), (217, 84970), (290, 63581), (293, 62930), (310, 59479), (406, 45415), (434, 42485), (586, 31465), (899, 20510), (1015, 18166), (1085, 16994), (1465, 12586), (1798, 10255), (2030, 9083), (2051, 8990), (2170, 8497), (2930, 6293), (4102, 4495)]