80987700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{499}}^1\times {\mathrm{541}}^1$

素因数の和:1057

約数の個数: 72

約数和(自身を含む): 235228000

約数和(自身を除く): 154240300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 499, 541, 998, 1082, 1497, 1623, 1996, 2164, 2495, 2705, 2994, 3246, 4990, 5410, 5988, 6492, 7485, 8115, 9980, 10820, 12475, 13525, 14970, 16230, 24950, 27050, 29940, 32460, 37425, 40575, 49900, 54100, 74850, 81150, 149700, 162300, 269959, 539918, 809877, 1079836, 1349795, 1619754, 2699590, 3239508, 4049385, 5399180, 6748975, 8098770, 13497950, 16197540, 20246925, 26995900, 40493850, 80987700]

約数ペア:

[(1, 80987700), (2, 40493850), (3, 26995900), (4, 20246925), (5, 16197540), (6, 13497950), (10, 8098770), (12, 6748975), (15, 5399180), (20, 4049385), (25, 3239508), (30, 2699590), (50, 1619754), (60, 1349795), (75, 1079836), (100, 809877), (150, 539918), (300, 269959), (499, 162300), (541, 149700), (998, 81150), (1082, 74850), (1497, 54100), (1623, 49900), (1996, 40575), (2164, 37425), (2495, 32460), (2705, 29940), (2994, 27050), (3246, 24950), (4990, 16230), (5410, 14970), (5988, 13525), (6492, 12475), (7485, 10820), (8115, 9980)]