68407640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{244313}}^1$

素因数の和:244331

約数の個数: 32

約数和(自身を含む): 175906080

約数和(自身を除く): 107498440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 244313, 488626, 977252, 1221565, 1710191, 1954504, 2443130, 3420382, 4886260, 6840764, 8550955, 9772520, 13681528, 17101910, 34203820, 68407640]

約数ペア:

[(1, 68407640), (2, 34203820), (4, 17101910), (5, 13681528), (7, 9772520), (8, 8550955), (10, 6840764), (14, 4886260), (20, 3420382), (28, 2443130), (35, 1954504), (40, 1710191), (56, 1221565), (70, 977252), (140, 488626), (280, 244313)]