78433720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1471}}^1$

素因数の和:1556

約数の個数: 64

約数和(自身を含む): 186531840

約数和(自身を除く): 108098120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 248, 310, 344, 430, 620, 860, 1240, 1333, 1471, 1720, 2666, 2942, 5332, 5884, 6665, 7355, 10664, 11768, 13330, 14710, 26660, 29420, 45601, 53320, 58840, 63253, 91202, 126506, 182404, 228005, 253012, 316265, 364808, 456010, 506024, 632530, 912020, 1265060, 1824040, 1960843, 2530120, 3921686, 7843372, 9804215, 15686744, 19608430, 39216860, 78433720]

約数ペア:

[(1, 78433720), (2, 39216860), (4, 19608430), (5, 15686744), (8, 9804215), (10, 7843372), (20, 3921686), (31, 2530120), (40, 1960843), (43, 1824040), (62, 1265060), (86, 912020), (124, 632530), (155, 506024), (172, 456010), (215, 364808), (248, 316265), (310, 253012), (344, 228005), (430, 182404), (620, 126506), (860, 91202), (1240, 63253), (1333, 58840), (1471, 53320), (1720, 45601), (2666, 29420), (2942, 26660), (5332, 14710), (5884, 13330), (6665, 11768), (7355, 10664)]