2828720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1861}}^1$

素因数の和:1893

約数の個数: 40

約数和(自身を含む): 6926640

約数和(自身を除く): 4097920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1861, 3722, 7444, 9305, 14888, 18610, 29776, 35359, 37220, 70718, 74440, 141436, 148880, 176795, 282872, 353590, 565744, 707180, 1414360, 2828720]

約数ペア:

[(1, 2828720), (2, 1414360), (4, 707180), (5, 565744), (8, 353590), (10, 282872), (16, 176795), (19, 148880), (20, 141436), (38, 74440), (40, 70718), (76, 37220), (80, 35359), (95, 29776), (152, 18610), (190, 14888), (304, 9305), (380, 7444), (760, 3722), (1520, 1861)]