16421940

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 53813760

約数和(自身を除く): 37391820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 109, 124, 135, 155, 162, 180, 186, 218, 243, 270, 279, 310, 324, 327, 372, 405, 436, 465, 486, 540, 545, 558, 620, 654, 810, 837, 930, 972, 981, 1090, 1116, 1215, 1308, 1395, 1620, 1635, 1674, 1860, 1962, 2180, 2430, 2511, 2790, 2943, 3270, 3348, 3379, 3924, 4185, 4860, 4905, 5022, 5580, 5886, 6540, 6758, 7533, 8370, 8829, 9810, 10044, 10137, 11772, 12555, 13516, 14715, 15066, 16740, 16895, 17658, 19620, 20274, 25110, 26487, 29430, 30132, 30411, 33790, 35316, 37665, 40548, 44145, 50220, 50685, 52974, 58860, 60822, 67580, 75330, 88290, 91233, 101370, 105948, 121644, 132435, 150660, 152055, 176580, 182466, 202740, 264870, 273699, 304110, 364932, 456165, 529740, 547398, 608220, 821097, 912330, 1094796, 1368495, 1642194, 1824660, 2736990, 3284388, 4105485, 5473980, 8210970, 16421940]

約数ペア:

[(1, 16421940), (2, 8210970), (3, 5473980), (4, 4105485), (5, 3284388), (6, 2736990), (9, 1824660), (10, 1642194), (12, 1368495), (15, 1094796), (18, 912330), (20, 821097), (27, 608220), (30, 547398), (31, 529740), (36, 456165), (45, 364932), (54, 304110), (60, 273699), (62, 264870), (81, 202740), (90, 182466), (93, 176580), (108, 152055), (109, 150660), (124, 132435), (135, 121644), (155, 105948), (162, 101370), (180, 91233), (186, 88290), (218, 75330), (243, 67580), (270, 60822), (279, 58860), (310, 52974), (324, 50685), (327, 50220), (372, 44145), (405, 40548), (436, 37665), (465, 35316), (486, 33790), (540, 30411), (545, 30132), (558, 29430), (620, 26487), (654, 25110), (810, 20274), (837, 19620), (930, 17658), (972, 16895), (981, 16740), (1090, 15066), (1116, 14715), (1215, 13516), (1308, 12555), (1395, 11772), (1620, 10137), (1635, 10044), (1674, 9810), (1860, 8829), (1962, 8370), (2180, 7533), (2430, 6758), (2511, 6540), (2790, 5886), (2943, 5580), (3270, 5022), (3348, 4905), (3379, 4860), (3924, 4185)]