408148480

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:230

約数の個数: 160

約数和(自身を含む): 1044933120

約数和(自身を除く): 636784640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 80, 124, 128, 139, 148, 155, 160, 185, 248, 256, 278, 296, 310, 320, 370, 496, 512, 556, 592, 620, 640, 695, 740, 992, 1112, 1147, 1184, 1240, 1280, 1390, 1480, 1984, 2224, 2294, 2368, 2480, 2560, 2780, 2960, 3968, 4309, 4448, 4588, 4736, 4960, 5143, 5560, 5735, 5920, 7936, 8618, 8896, 9176, 9472, 9920, 10286, 11120, 11470, 11840, 15872, 17236, 17792, 18352, 18944, 19840, 20572, 21545, 22240, 22940, 23680, 25715, 34472, 35584, 36704, 39680, 41144, 43090, 44480, 45880, 47360, 51430, 68944, 71168, 73408, 79360, 82288, 86180, 88960, 91760, 94720, 102860, 137888, 146816, 159433, 164576, 172360, 177920, 183520, 205720, 275776, 293632, 318866, 329152, 344720, 355840, 367040, 411440, 551552, 587264, 637732, 658304, 689440, 734080, 797165, 822880, 1103104, 1275464, 1316608, 1378880, 1468160, 1594330, 1645760, 2206208, 2550928, 2633216, 2757760, 2936320, 3188660, 3291520, 5101856, 5515520, 6377320, 6583040, 10203712, 11031040, 12754640, 13166080, 20407424, 25509280, 40814848, 51018560, 81629696, 102037120, 204074240, 408148480]

約数ペア:

[(1, 408148480), (2, 204074240), (4, 102037120), (5, 81629696), (8, 51018560), (10, 40814848), (16, 25509280), (20, 20407424), (31, 13166080), (32, 12754640), (37, 11031040), (40, 10203712), (62, 6583040), (64, 6377320), (74, 5515520), (80, 5101856), (124, 3291520), (128, 3188660), (139, 2936320), (148, 2757760), (155, 2633216), (160, 2550928), (185, 2206208), (248, 1645760), (256, 1594330), (278, 1468160), (296, 1378880), (310, 1316608), (320, 1275464), (370, 1103104), (496, 822880), (512, 797165), (556, 734080), (592, 689440), (620, 658304), (640, 637732), (695, 587264), (740, 551552), (992, 411440), (1112, 367040), (1147, 355840), (1184, 344720), (1240, 329152), (1280, 318866), (1390, 293632), (1480, 275776), (1984, 205720), (2224, 183520), (2294, 177920), (2368, 172360), (2480, 164576), (2560, 159433), (2780, 146816), (2960, 137888), (3968, 102860), (4309, 94720), (4448, 91760), (4588, 88960), (4736, 86180), (4960, 82288), (5143, 79360), (5560, 73408), (5735, 71168), (5920, 68944), (7936, 51430), (8618, 47360), (8896, 45880), (9176, 44480), (9472, 43090), (9920, 41144), (10286, 39680), (11120, 36704), (11470, 35584), (11840, 34472), (15872, 25715), (17236, 23680), (17792, 22940), (18352, 22240), (18944, 21545), (19840, 20572)]