255758840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{617}}^1$

素因数の和:912

約数の個数: 64

約数和(自身を含む): 592241760

約数和(自身を除く): 336482920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 241, 344, 430, 482, 617, 860, 964, 1205, 1234, 1720, 1928, 2410, 2468, 3085, 4820, 4936, 6170, 9640, 10363, 12340, 20726, 24680, 26531, 41452, 51815, 53062, 82904, 103630, 106124, 132655, 148697, 207260, 212248, 265310, 297394, 414520, 530620, 594788, 743485, 1061240, 1189576, 1486970, 2973940, 5947880, 6393971, 12787942, 25575884, 31969855, 51151768, 63939710, 127879420, 255758840]

約数ペア:

[(1, 255758840), (2, 127879420), (4, 63939710), (5, 51151768), (8, 31969855), (10, 25575884), (20, 12787942), (40, 6393971), (43, 5947880), (86, 2973940), (172, 1486970), (215, 1189576), (241, 1061240), (344, 743485), (430, 594788), (482, 530620), (617, 414520), (860, 297394), (964, 265310), (1205, 212248), (1234, 207260), (1720, 148697), (1928, 132655), (2410, 106124), (2468, 103630), (3085, 82904), (4820, 53062), (4936, 51815), (6170, 41452), (9640, 26531), (10363, 24680), (12340, 20726)]