19578960

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:473

約数の個数: 120

約数和(自身を含む): 66852864

約数和(自身を除く): 47273904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 71, 72, 80, 90, 120, 142, 144, 180, 213, 240, 284, 355, 360, 383, 426, 568, 639, 710, 720, 766, 852, 1065, 1136, 1149, 1278, 1420, 1532, 1704, 1915, 2130, 2298, 2556, 2840, 3064, 3195, 3408, 3447, 3830, 4260, 4596, 5112, 5680, 5745, 6128, 6390, 6894, 7660, 8520, 9192, 10224, 11490, 12780, 13788, 15320, 17040, 17235, 18384, 22980, 25560, 27193, 27576, 30640, 34470, 45960, 51120, 54386, 55152, 68940, 81579, 91920, 108772, 135965, 137880, 163158, 217544, 244737, 271930, 275760, 326316, 407895, 435088, 489474, 543860, 652632, 815790, 978948, 1087720, 1223685, 1305264, 1631580, 1957896, 2175440, 2447370, 3263160, 3915792, 4894740, 6526320, 9789480, 19578960]

約数ペア:

[(1, 19578960), (2, 9789480), (3, 6526320), (4, 4894740), (5, 3915792), (6, 3263160), (8, 2447370), (9, 2175440), (10, 1957896), (12, 1631580), (15, 1305264), (16, 1223685), (18, 1087720), (20, 978948), (24, 815790), (30, 652632), (36, 543860), (40, 489474), (45, 435088), (48, 407895), (60, 326316), (71, 275760), (72, 271930), (80, 244737), (90, 217544), (120, 163158), (142, 137880), (144, 135965), (180, 108772), (213, 91920), (240, 81579), (284, 68940), (355, 55152), (360, 54386), (383, 51120), (426, 45960), (568, 34470), (639, 30640), (710, 27576), (720, 27193), (766, 25560), (852, 22980), (1065, 18384), (1136, 17235), (1149, 17040), (1278, 15320), (1420, 13788), (1532, 12780), (1704, 11490), (1915, 10224), (2130, 9192), (2298, 8520), (2556, 7660), (2840, 6894), (3064, 6390), (3195, 6128), (3408, 5745), (3447, 5680), (3830, 5112), (4260, 4596)]