7995820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 20109600

約数和(自身を除く): 12113780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 199, 205, 245, 287, 398, 410, 490, 574, 796, 820, 980, 995, 1148, 1393, 1435, 1990, 2009, 2786, 2870, 3980, 4018, 5572, 5740, 6965, 8036, 8159, 9751, 10045, 13930, 16318, 19502, 20090, 27860, 32636, 39004, 40180, 40795, 48755, 57113, 81590, 97510, 114226, 163180, 195020, 228452, 285565, 399791, 571130, 799582, 1142260, 1599164, 1998955, 3997910, 7995820]

約数ペア:

[(1, 7995820), (2, 3997910), (4, 1998955), (5, 1599164), (7, 1142260), (10, 799582), (14, 571130), (20, 399791), (28, 285565), (35, 228452), (41, 195020), (49, 163180), (70, 114226), (82, 97510), (98, 81590), (140, 57113), (164, 48755), (196, 40795), (199, 40180), (205, 39004), (245, 32636), (287, 27860), (398, 20090), (410, 19502), (490, 16318), (574, 13930), (796, 10045), (820, 9751), (980, 8159), (995, 8036), (1148, 6965), (1393, 5740), (1435, 5572), (1990, 4018), (2009, 3980), (2786, 2870)]