66964940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{478321}}^1$

素因数の和:478337

約数の個数: 24

約数和(自身を含む): 160716192

約数和(自身を除く): 93751252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 478321, 956642, 1913284, 2391605, 3348247, 4783210, 6696494, 9566420, 13392988, 16741235, 33482470, 66964940]

約数ペア:

[(1, 66964940), (2, 33482470), (4, 16741235), (5, 13392988), (7, 9566420), (10, 6696494), (14, 4783210), (20, 3348247), (28, 2391605), (35, 1913284), (70, 956642), (140, 478321)]