78956780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29683}}^1$

素因数の和:29718

約数の個数: 48

約数和(自身を含む): 199476480

約数和(自身を除く): 120519700

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 29683, 59366, 118732, 148415, 207781, 296830, 415562, 563977, 593660, 831124, 1038905, 1127954, 2077810, 2255908, 2819885, 3947839, 4155620, 5639770, 7895678, 11279540, 15791356, 19739195, 39478390, 78956780]

約数ペア:

[(1, 78956780), (2, 39478390), (4, 19739195), (5, 15791356), (7, 11279540), (10, 7895678), (14, 5639770), (19, 4155620), (20, 3947839), (28, 2819885), (35, 2255908), (38, 2077810), (70, 1127954), (76, 1038905), (95, 831124), (133, 593660), (140, 563977), (190, 415562), (266, 296830), (380, 207781), (532, 148415), (665, 118732), (1330, 59366), (2660, 29683)]