18661680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{25919}}^1$

素因数の和:25938

約数の個数: 60

約数和(自身を含む): 62674560

約数和(自身を除く): 44012880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 25919, 51838, 77757, 103676, 129595, 155514, 207352, 233271, 259190, 311028, 388785, 414704, 466542, 518380, 622056, 777570, 933084, 1036760, 1166355, 1244112, 1555140, 1866168, 2073520, 2332710, 3110280, 3732336, 4665420, 6220560, 9330840, 18661680]

約数ペア:

[(1, 18661680), (2, 9330840), (3, 6220560), (4, 4665420), (5, 3732336), (6, 3110280), (8, 2332710), (9, 2073520), (10, 1866168), (12, 1555140), (15, 1244112), (16, 1166355), (18, 1036760), (20, 933084), (24, 777570), (30, 622056), (36, 518380), (40, 466542), (45, 414704), (48, 388785), (60, 311028), (72, 259190), (80, 233271), (90, 207352), (120, 155514), (144, 129595), (180, 103676), (240, 77757), (360, 51838), (720, 25919)]