245492720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8999}}^1$

素因数の和:9054

約数の個数: 80

約数和(自身を含む): 642816000

約数和(自身を除く): 397323280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 8999, 13640, 17998, 27280, 35996, 44995, 71992, 89990, 98989, 143984, 179980, 197978, 278969, 359960, 395956, 494945, 557938, 719920, 791912, 989890, 1115876, 1394845, 1583824, 1979780, 2231752, 2789690, 3068659, 3959560, 4463504, 5579380, 6137318, 7919120, 11158760, 12274636, 15343295, 22317520, 24549272, 30686590, 49098544, 61373180, 122746360, 245492720]

約数ペア:

[(1, 245492720), (2, 122746360), (4, 61373180), (5, 49098544), (8, 30686590), (10, 24549272), (11, 22317520), (16, 15343295), (20, 12274636), (22, 11158760), (31, 7919120), (40, 6137318), (44, 5579380), (55, 4463504), (62, 3959560), (80, 3068659), (88, 2789690), (110, 2231752), (124, 1979780), (155, 1583824), (176, 1394845), (220, 1115876), (248, 989890), (310, 791912), (341, 719920), (440, 557938), (496, 494945), (620, 395956), (682, 359960), (880, 278969), (1240, 197978), (1364, 179980), (1705, 143984), (2480, 98989), (2728, 89990), (3410, 71992), (5456, 44995), (6820, 35996), (8999, 27280), (13640, 17998)]