198868740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{473497}}^1$

素因数の和:473516

約数の個数: 48

約数和(自身を含む): 636381312

約数和(自身を除く): 437512572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 473497, 946994, 1420491, 1893988, 2367485, 2840982, 3314479, 4734970, 5681964, 6628958, 7102455, 9469940, 9943437, 13257916, 14204910, 16572395, 19886874, 28409820, 33144790, 39773748, 49717185, 66289580, 99434370, 198868740]

約数ペア:

[(1, 198868740), (2, 99434370), (3, 66289580), (4, 49717185), (5, 39773748), (6, 33144790), (7, 28409820), (10, 19886874), (12, 16572395), (14, 14204910), (15, 13257916), (20, 9943437), (21, 9469940), (28, 7102455), (30, 6628958), (35, 5681964), (42, 4734970), (60, 3314479), (70, 2840982), (84, 2367485), (105, 1893988), (140, 1420491), (210, 946994), (420, 473497)]