30402260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{547}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 73282944

約数和(自身を除く): 42880684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 547, 794, 1094, 1588, 1985, 2188, 2735, 2779, 3829, 3970, 5470, 5558, 7658, 7940, 10940, 11116, 13895, 15316, 19145, 27790, 38290, 55580, 76580, 217159, 434318, 868636, 1085795, 1520113, 2171590, 3040226, 4343180, 6080452, 7600565, 15201130, 30402260]

約数ペア:

[(1, 30402260), (2, 15201130), (4, 7600565), (5, 6080452), (7, 4343180), (10, 3040226), (14, 2171590), (20, 1520113), (28, 1085795), (35, 868636), (70, 434318), (140, 217159), (397, 76580), (547, 55580), (794, 38290), (1094, 27790), (1588, 19145), (1985, 15316), (2188, 13895), (2735, 11116), (2779, 10940), (3829, 7940), (3970, 7658), (5470, 5558)]