78981720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1319}}^1$

素因数の和:1832

約数の個数: 64

約数和(自身を含む): 237600000

約数和(自身を除く): 158618280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 499, 998, 1319, 1497, 1996, 2495, 2638, 2994, 3957, 3992, 4990, 5276, 5988, 6595, 7485, 7914, 9980, 10552, 11976, 13190, 14970, 15828, 19785, 19960, 26380, 29940, 31656, 39570, 52760, 59880, 79140, 158280, 658181, 1316362, 1974543, 2632724, 3290905, 3949086, 5265448, 6581810, 7898172, 9872715, 13163620, 15796344, 19745430, 26327240, 39490860, 78981720]

約数ペア:

[(1, 78981720), (2, 39490860), (3, 26327240), (4, 19745430), (5, 15796344), (6, 13163620), (8, 9872715), (10, 7898172), (12, 6581810), (15, 5265448), (20, 3949086), (24, 3290905), (30, 2632724), (40, 1974543), (60, 1316362), (120, 658181), (499, 158280), (998, 79140), (1319, 59880), (1497, 52760), (1996, 39570), (2495, 31656), (2638, 29940), (2994, 26380), (3957, 19960), (3992, 19785), (4990, 15828), (5276, 14970), (5988, 13190), (6595, 11976), (7485, 10552), (7914, 9980)]