245300820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{240491}}^1$

素因数の和:240520

約数の個数: 48

約数和(自身を含む): 727247808

約数和(自身を除く): 481946988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 240491, 480982, 721473, 961964, 1202455, 1442946, 2404910, 2885892, 3607365, 4088347, 4809820, 7214730, 8176694, 12265041, 14429460, 16353388, 20441735, 24530082, 40883470, 49060164, 61325205, 81766940, 122650410, 245300820]

約数ペア:

[(1, 245300820), (2, 122650410), (3, 81766940), (4, 61325205), (5, 49060164), (6, 40883470), (10, 24530082), (12, 20441735), (15, 16353388), (17, 14429460), (20, 12265041), (30, 8176694), (34, 7214730), (51, 4809820), (60, 4088347), (68, 3607365), (85, 2885892), (102, 2404910), (170, 1442946), (204, 1202455), (255, 961964), (340, 721473), (510, 480982), (1020, 240491)]