400025772

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{2447}}^1$

素因数の和:2715

約数の個数: 72

約数和(自身を含む): 1069286400

約数和(自身を除く): 669260628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 239, 342, 478, 684, 717, 956, 1434, 2151, 2447, 2868, 4302, 4541, 4894, 7341, 8604, 9082, 9788, 13623, 14682, 18164, 22023, 27246, 29364, 40869, 44046, 46493, 54492, 81738, 88092, 92986, 139479, 163476, 185972, 278958, 418437, 557916, 584833, 836874, 1169666, 1673748, 1754499, 2339332, 3508998, 5263497, 7017996, 10526994, 11111827, 21053988, 22223654, 33335481, 44447308, 66670962, 100006443, 133341924, 200012886, 400025772]

約数ペア:

[(1, 400025772), (2, 200012886), (3, 133341924), (4, 100006443), (6, 66670962), (9, 44447308), (12, 33335481), (18, 22223654), (19, 21053988), (36, 11111827), (38, 10526994), (57, 7017996), (76, 5263497), (114, 3508998), (171, 2339332), (228, 1754499), (239, 1673748), (342, 1169666), (478, 836874), (684, 584833), (717, 557916), (956, 418437), (1434, 278958), (2151, 185972), (2447, 163476), (2868, 139479), (4302, 92986), (4541, 88092), (4894, 81738), (7341, 54492), (8604, 46493), (9082, 44046), (9788, 40869), (13623, 29364), (14682, 27246), (18164, 22023)]