81845340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31723}}^1$

素因数の和:31778

約数の個数: 48

約数和(自身を含む): 234503808

約数和(自身を除く): 152658468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 31723, 63446, 95169, 126892, 158615, 190338, 317230, 380676, 475845, 634460, 951690, 1364089, 1903380, 2728178, 4092267, 5456356, 6820445, 8184534, 13640890, 16369068, 20461335, 27281780, 40922670, 81845340]

約数ペア:

[(1, 81845340), (2, 40922670), (3, 27281780), (4, 20461335), (5, 16369068), (6, 13640890), (10, 8184534), (12, 6820445), (15, 5456356), (20, 4092267), (30, 2728178), (43, 1903380), (60, 1364089), (86, 951690), (129, 634460), (172, 475845), (215, 380676), (258, 317230), (430, 190338), (516, 158615), (645, 126892), (860, 95169), (1290, 63446), (2580, 31723)]