209594280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{249517}}^1$

素因数の和:249538

約数の個数: 64

約数和(自身を含む): 718611840

約数和(自身を除く): 509017560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 249517, 499034, 748551, 998068, 1247585, 1497102, 1746619, 1996136, 2495170, 2994204, 3493238, 3742755, 4990340, 5239857, 5988408, 6986476, 7485510, 8733095, 9980680, 10479714, 13972952, 14971020, 17466190, 20959428, 26199285, 29942040, 34932380, 41918856, 52398570, 69864760, 104797140, 209594280]

約数ペア:

[(1, 209594280), (2, 104797140), (3, 69864760), (4, 52398570), (5, 41918856), (6, 34932380), (7, 29942040), (8, 26199285), (10, 20959428), (12, 17466190), (14, 14971020), (15, 13972952), (20, 10479714), (21, 9980680), (24, 8733095), (28, 7485510), (30, 6986476), (35, 5988408), (40, 5239857), (42, 4990340), (56, 3742755), (60, 3493238), (70, 2994204), (84, 2495170), (105, 1996136), (120, 1746619), (140, 1497102), (168, 1247585), (210, 998068), (280, 748551), (420, 499034), (840, 249517)]