254785720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{39563}}^1$

素因数の和:39604

約数の個数: 64

約数和(自身を含む): 683665920

約数和(自身を除く): 428880200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 39563, 79126, 158252, 197815, 276941, 316504, 395630, 553882, 791260, 909949, 1107764, 1384705, 1582520, 1819898, 2215528, 2769410, 3639796, 4549745, 5538820, 6369643, 7279592, 9099490, 11077640, 12739286, 18198980, 25478572, 31848215, 36397960, 50957144, 63696430, 127392860, 254785720]

約数ペア:

[(1, 254785720), (2, 127392860), (4, 63696430), (5, 50957144), (7, 36397960), (8, 31848215), (10, 25478572), (14, 18198980), (20, 12739286), (23, 11077640), (28, 9099490), (35, 7279592), (40, 6369643), (46, 5538820), (56, 4549745), (70, 3639796), (92, 2769410), (115, 2215528), (140, 1819898), (161, 1582520), (184, 1384705), (230, 1107764), (280, 909949), (322, 791260), (460, 553882), (644, 395630), (805, 316504), (920, 276941), (1288, 197815), (1610, 158252), (3220, 79126), (6440, 39563)]