883968820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{902009}}^1$

素因数の和:902032

約数の個数: 36

約数和(自身を含む): 2159411940

約数和(自身を除く): 1275443120

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 902009, 1804018, 3608036, 4510045, 6314063, 9020090, 12628126, 18040180, 25256252, 31570315, 44198441, 63140630, 88396882, 126281260, 176793764, 220992205, 441984410, 883968820]

約数ペア:

[(1, 883968820), (2, 441984410), (4, 220992205), (5, 176793764), (7, 126281260), (10, 88396882), (14, 63140630), (20, 44198441), (28, 31570315), (35, 25256252), (49, 18040180), (70, 12628126), (98, 9020090), (140, 6314063), (196, 4510045), (245, 3608036), (490, 1804018), (980, 902009)]