19977240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{601}}^1$

素因数の和:892

約数の個数: 64

約数和(自身を含む): 60248160

約数和(自身を除く): 40270920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 277, 554, 601, 831, 1108, 1202, 1385, 1662, 1803, 2216, 2404, 2770, 3005, 3324, 3606, 4155, 4808, 5540, 6010, 6648, 7212, 8310, 9015, 11080, 12020, 14424, 16620, 18030, 24040, 33240, 36060, 72120, 166477, 332954, 499431, 665908, 832385, 998862, 1331816, 1664770, 1997724, 2497155, 3329540, 3995448, 4994310, 6659080, 9988620, 19977240]

約数ペア:

[(1, 19977240), (2, 9988620), (3, 6659080), (4, 4994310), (5, 3995448), (6, 3329540), (8, 2497155), (10, 1997724), (12, 1664770), (15, 1331816), (20, 998862), (24, 832385), (30, 665908), (40, 499431), (60, 332954), (120, 166477), (277, 72120), (554, 36060), (601, 33240), (831, 24040), (1108, 18030), (1202, 16620), (1385, 14424), (1662, 12020), (1803, 11080), (2216, 9015), (2404, 8310), (2770, 7212), (3005, 6648), (3324, 6010), (3606, 5540), (4155, 4808)]