28513440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19801}}^1$

素因数の和:19822

約数の個数: 72

約数和(自身を含む): 97307028

約数和(自身を除く): 68793588

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 19801, 39602, 59403, 79204, 99005, 118806, 158408, 178209, 198010, 237612, 297015, 316816, 356418, 396020, 475224, 594030, 633632, 712836, 792040, 891045, 950448, 1188060, 1425672, 1584080, 1782090, 1900896, 2376120, 2851344, 3168160, 3564180, 4752240, 5702688, 7128360, 9504480, 14256720, 28513440]

約数ペア:

[(1, 28513440), (2, 14256720), (3, 9504480), (4, 7128360), (5, 5702688), (6, 4752240), (8, 3564180), (9, 3168160), (10, 2851344), (12, 2376120), (15, 1900896), (16, 1782090), (18, 1584080), (20, 1425672), (24, 1188060), (30, 950448), (32, 891045), (36, 792040), (40, 712836), (45, 633632), (48, 594030), (60, 475224), (72, 396020), (80, 356418), (90, 316816), (96, 297015), (120, 237612), (144, 198010), (160, 178209), (180, 158408), (240, 118806), (288, 99005), (360, 79204), (480, 59403), (720, 39602), (1440, 19801)]