406941780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{968909}}^1$

素因数の和:968928

約数の個数: 48

約数和(自身を含む): 1302215040

約数和(自身を除く): 895273260

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, 968909, 1937818, 2906727, 3875636, 4844545, 5813454, 6782363, 9689090, 11626908, 13564726, 14533635, 19378180, 20347089, 27129452, 29067270, 33911815, 40694178, 58134540, 67823630, 81388356, 101735445, 135647260, 203470890, 406941780]

約数ペア:

[(1, 406941780), (2, 203470890), (3, 135647260), (4, 101735445), (5, 81388356), (6, 67823630), (7, 58134540), (10, 40694178), (12, 33911815), (14, 29067270), (15, 27129452), (20, 20347089), (21, 19378180), (28, 14533635), (30, 13564726), (35, 11626908), (42, 9689090), (60, 6782363), (70, 5813454), (84, 4844545), (105, 3875636), (140, 2906727), (210, 1937818), (420, 968909)]