84890820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{202121}}^1$

素因数の和:202140

約数の個数: 48

約数和(自身を含む): 271651968

約数和(自身を除く): 186761148

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 202121, 404242, 606363, 808484, 1010605, 1212726, 1414847, 2021210, 2425452, 2829694, 3031815, 4042420, 4244541, 5659388, 6063630, 7074235, 8489082, 12127260, 14148470, 16978164, 21222705, 28296940, 42445410, 84890820]

約数ペア:

[(1, 84890820), (2, 42445410), (3, 28296940), (4, 21222705), (5, 16978164), (6, 14148470), (7, 12127260), (10, 8489082), (12, 7074235), (14, 6063630), (15, 5659388), (20, 4244541), (21, 4042420), (28, 3031815), (30, 2829694), (35, 2425452), (42, 2021210), (60, 1414847), (70, 1212726), (84, 1010605), (105, 808484), (140, 606363), (210, 404242), (420, 202121)]