19899120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{82913}}^1$

素因数の和:82929

約数の個数: 40

約数和(自身を含む): 61688016

約数和(自身を除く): 41788896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 82913, 165826, 248739, 331652, 414565, 497478, 663304, 829130, 994956, 1243695, 1326608, 1658260, 1989912, 2487390, 3316520, 3979824, 4974780, 6633040, 9949560, 19899120]

約数ペア:

[(1, 19899120), (2, 9949560), (3, 6633040), (4, 4974780), (5, 3979824), (6, 3316520), (8, 2487390), (10, 1989912), (12, 1658260), (15, 1326608), (16, 1243695), (20, 994956), (24, 829130), (30, 663304), (40, 497478), (48, 414565), (60, 331652), (80, 248739), (120, 165826), (240, 82913)]