19807440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{82531}}^1$

素因数の和:82547

約数の個数: 40

約数和(自身を含む): 61403808

約数和(自身を除く): 41596368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 82531, 165062, 247593, 330124, 412655, 495186, 660248, 825310, 990372, 1237965, 1320496, 1650620, 1980744, 2475930, 3301240, 3961488, 4951860, 6602480, 9903720, 19807440]

約数ペア:

[(1, 19807440), (2, 9903720), (3, 6602480), (4, 4951860), (5, 3961488), (6, 3301240), (8, 2475930), (10, 1980744), (12, 1650620), (15, 1320496), (16, 1237965), (20, 990372), (24, 825310), (30, 660248), (40, 495186), (48, 412655), (60, 330124), (80, 247593), (120, 165062), (240, 82531)]