1213309640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{415517}}^1$

素因数の和:415601

約数の個数: 32

約数和(自身を含む): 2767349880

約数和(自身を除く): 1554040240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 415517, 831034, 1662068, 2077585, 3324136, 4155170, 8310340, 16620680, 30332741, 60665482, 121330964, 151663705, 242661928, 303327410, 606654820, 1213309640]

約数ペア:

[(1, 1213309640), (2, 606654820), (4, 303327410), (5, 242661928), (8, 151663705), (10, 121330964), (20, 60665482), (40, 30332741), (73, 16620680), (146, 8310340), (292, 4155170), (365, 3324136), (584, 2077585), (730, 1662068), (1460, 831034), (2920, 415517)]