4399980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5641}}^1$

素因数の和:5666

約数の個数: 48

約数和(自身を含む): 13269984

約数和(自身を除く): 8870004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 5641, 11282, 16923, 22564, 28205, 33846, 56410, 67692, 73333, 84615, 112820, 146666, 169230, 219999, 293332, 338460, 366665, 439998, 733330, 879996, 1099995, 1466660, 2199990, 4399980]

約数ペア:

[(1, 4399980), (2, 2199990), (3, 1466660), (4, 1099995), (5, 879996), (6, 733330), (10, 439998), (12, 366665), (13, 338460), (15, 293332), (20, 219999), (26, 169230), (30, 146666), (39, 112820), (52, 84615), (60, 73333), (65, 67692), (78, 56410), (130, 33846), (156, 28205), (195, 22564), (260, 16923), (390, 11282), (780, 5641)]