319920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:90

約数の個数: 80

約数和(自身を含む): 1047552

約数和(自身を除く): 727632

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 43, 48, 60, 62, 80, 86, 93, 120, 124, 129, 155, 172, 186, 215, 240, 248, 258, 310, 344, 372, 430, 465, 496, 516, 620, 645, 688, 744, 860, 930, 1032, 1240, 1290, 1333, 1488, 1720, 1860, 2064, 2480, 2580, 2666, 3440, 3720, 3999, 5160, 5332, 6665, 7440, 7998, 10320, 10664, 13330, 15996, 19995, 21328, 26660, 31992, 39990, 53320, 63984, 79980, 106640, 159960, 319920]

約数ペア:

[(1, 319920), (2, 159960), (3, 106640), (4, 79980), (5, 63984), (6, 53320), (8, 39990), (10, 31992), (12, 26660), (15, 21328), (16, 19995), (20, 15996), (24, 13330), (30, 10664), (31, 10320), (40, 7998), (43, 7440), (48, 6665), (60, 5332), (62, 5160), (80, 3999), (86, 3720), (93, 3440), (120, 2666), (124, 2580), (129, 2480), (155, 2064), (172, 1860), (186, 1720), (215, 1488), (240, 1333), (248, 1290), (258, 1240), (310, 1032), (344, 930), (372, 860), (430, 744), (465, 688), (496, 645), (516, 620)]