18143860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{359}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 46085760

約数和(自身を除く): 27941900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 359, 361, 380, 532, 665, 718, 722, 1330, 1436, 1444, 1795, 1805, 2513, 2527, 2660, 3590, 3610, 5026, 5054, 6821, 7180, 7220, 10052, 10108, 12565, 12635, 13642, 25130, 25270, 27284, 34105, 47747, 50260, 50540, 68210, 95494, 129599, 136420, 190988, 238735, 259198, 477470, 518396, 647995, 907193, 954940, 1295990, 1814386, 2591980, 3628772, 4535965, 9071930, 18143860]

約数ペア:

[(1, 18143860), (2, 9071930), (4, 4535965), (5, 3628772), (7, 2591980), (10, 1814386), (14, 1295990), (19, 954940), (20, 907193), (28, 647995), (35, 518396), (38, 477470), (70, 259198), (76, 238735), (95, 190988), (133, 136420), (140, 129599), (190, 95494), (266, 68210), (359, 50540), (361, 50260), (380, 47747), (532, 34105), (665, 27284), (718, 25270), (722, 25130), (1330, 13642), (1436, 12635), (1444, 12565), (1795, 10108), (1805, 10052), (2513, 7220), (2527, 7180), (2660, 6821), (3590, 5054), (3610, 5026)]