400319220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{136163}}^1$

素因数の和:136189

約数の個数: 72

約数和(自身を含む): 1303906464

約数和(自身を除く): 903587244

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 136163, 272326, 408489, 544652, 680815, 816978, 953141, 1361630, 1633956, 1906282, 2042445, 2723260, 2859423, 3812564, 4084890, 4765705, 5718846, 6671987, 8169780, 9531410, 11437692, 13343974, 14297115, 19062820, 20015961, 26687948, 28594230, 33359935, 40031922, 57188460, 66719870, 80063844, 100079805, 133439740, 200159610, 400319220]

約数ペア:

[(1, 400319220), (2, 200159610), (3, 133439740), (4, 100079805), (5, 80063844), (6, 66719870), (7, 57188460), (10, 40031922), (12, 33359935), (14, 28594230), (15, 26687948), (20, 20015961), (21, 19062820), (28, 14297115), (30, 13343974), (35, 11437692), (42, 9531410), (49, 8169780), (60, 6671987), (70, 5718846), (84, 4765705), (98, 4084890), (105, 3812564), (140, 2859423), (147, 2723260), (196, 2042445), (210, 1906282), (245, 1633956), (294, 1361630), (420, 953141), (490, 816978), (588, 680815), (735, 544652), (980, 408489), (1470, 272326), (2940, 136163)]