920820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 2620800

約数和(自身を除く): 1699980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 103, 149, 206, 298, 309, 412, 447, 515, 596, 618, 745, 894, 1030, 1236, 1490, 1545, 1788, 2060, 2235, 2980, 3090, 4470, 6180, 8940, 15347, 30694, 46041, 61388, 76735, 92082, 153470, 184164, 230205, 306940, 460410, 920820]

約数ペア:

[(1, 920820), (2, 460410), (3, 306940), (4, 230205), (5, 184164), (6, 153470), (10, 92082), (12, 76735), (15, 61388), (20, 46041), (30, 30694), (60, 15347), (103, 8940), (149, 6180), (206, 4470), (298, 3090), (309, 2980), (412, 2235), (447, 2060), (515, 1788), (596, 1545), (618, 1490), (745, 1236), (894, 1030)]