19738160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18979}}^1$

素因数の和:19005

約数の個数: 40

約数和(自身を含む): 49423920

約数和(自身を除く): 29685760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18979, 37958, 75916, 94895, 151832, 189790, 246727, 303664, 379580, 493454, 759160, 986908, 1233635, 1518320, 1973816, 2467270, 3947632, 4934540, 9869080, 19738160]

約数ペア:

[(1, 19738160), (2, 9869080), (4, 4934540), (5, 3947632), (8, 2467270), (10, 1973816), (13, 1518320), (16, 1233635), (20, 986908), (26, 759160), (40, 493454), (52, 379580), (65, 303664), (80, 246727), (104, 189790), (130, 151832), (208, 94895), (260, 75916), (520, 37958), (1040, 18979)]