18880920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:489

約数の個数: 96

約数和(自身を含む): 61916400

約数和(自身を除く): 43035480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 179, 180, 293, 358, 360, 537, 586, 716, 879, 895, 1074, 1172, 1432, 1465, 1611, 1758, 1790, 2148, 2344, 2637, 2685, 2930, 3222, 3516, 3580, 4296, 4395, 5274, 5370, 5860, 6444, 7032, 7160, 8055, 8790, 10548, 10740, 11720, 12888, 13185, 16110, 17580, 21096, 21480, 26370, 32220, 35160, 52447, 52740, 64440, 104894, 105480, 157341, 209788, 262235, 314682, 419576, 472023, 524470, 629364, 786705, 944046, 1048940, 1258728, 1573410, 1888092, 2097880, 2360115, 3146820, 3776184, 4720230, 6293640, 9440460, 18880920]

約数ペア:

[(1, 18880920), (2, 9440460), (3, 6293640), (4, 4720230), (5, 3776184), (6, 3146820), (8, 2360115), (9, 2097880), (10, 1888092), (12, 1573410), (15, 1258728), (18, 1048940), (20, 944046), (24, 786705), (30, 629364), (36, 524470), (40, 472023), (45, 419576), (60, 314682), (72, 262235), (90, 209788), (120, 157341), (179, 105480), (180, 104894), (293, 64440), (358, 52740), (360, 52447), (537, 35160), (586, 32220), (716, 26370), (879, 21480), (895, 21096), (1074, 17580), (1172, 16110), (1432, 13185), (1465, 12888), (1611, 11720), (1758, 10740), (1790, 10548), (2148, 8790), (2344, 8055), (2637, 7160), (2685, 7032), (2930, 6444), (3222, 5860), (3516, 5370), (3580, 5274), (4296, 4395)]