256495440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56249}}^1$

素因数の和:56284

約数の個数: 80

約数和(自身を含む): 837000000

約数和(自身を除く): 580504560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 56249, 112498, 168747, 224996, 281245, 337494, 449992, 562490, 674988, 843735, 899984, 1068731, 1124980, 1349976, 1687470, 2137462, 2249960, 2699952, 3206193, 3374940, 4274924, 4499920, 5343655, 6412386, 6749880, 8549848, 10687310, 12824772, 13499760, 16030965, 17099696, 21374620, 25649544, 32061930, 42749240, 51299088, 64123860, 85498480, 128247720, 256495440]

約数ペア:

[(1, 256495440), (2, 128247720), (3, 85498480), (4, 64123860), (5, 51299088), (6, 42749240), (8, 32061930), (10, 25649544), (12, 21374620), (15, 17099696), (16, 16030965), (19, 13499760), (20, 12824772), (24, 10687310), (30, 8549848), (38, 6749880), (40, 6412386), (48, 5343655), (57, 4499920), (60, 4274924), (76, 3374940), (80, 3206193), (95, 2699952), (114, 2249960), (120, 2137462), (152, 1687470), (190, 1349976), (228, 1124980), (240, 1068731), (285, 899984), (304, 843735), (380, 674988), (456, 562490), (570, 449992), (760, 337494), (912, 281245), (1140, 224996), (1520, 168747), (2280, 112498), (4560, 56249)]