2020980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2591}}^1$

素因数の和:2616

約数の個数: 48

約数和(自身を含む): 6096384

約数和(自身を除く): 4075404

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, 2591, 5182, 7773, 10364, 12955, 15546, 25910, 31092, 33683, 38865, 51820, 67366, 77730, 101049, 134732, 155460, 168415, 202098, 336830, 404196, 505245, 673660, 1010490, 2020980]

約数ペア:

[(1, 2020980), (2, 1010490), (3, 673660), (4, 505245), (5, 404196), (6, 336830), (10, 202098), (12, 168415), (13, 155460), (15, 134732), (20, 101049), (26, 77730), (30, 67366), (39, 51820), (52, 38865), (60, 33683), (65, 31092), (78, 25910), (130, 15546), (156, 12955), (195, 10364), (260, 7773), (390, 5182), (780, 2591)]