1640505960

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{506329}}^1$

素因数の和:506352

約数の個数: 80

約数和(自身を含む): 5513933700

約数和(自身を除く): 3873427740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 506329, 1012658, 1518987, 2025316, 2531645, 3037974, 4050632, 4556961, 5063290, 6075948, 7594935, 9113922, 10126580, 12151896, 13670883, 15189870, 18227844, 20253160, 22784805, 27341766, 30379740, 36455688, 41012649, 45569610, 54683532, 60759480, 68354415, 82025298, 91139220, 109367064, 136708830, 164050596, 182278440, 205063245, 273417660, 328101192, 410126490, 546835320, 820252980, 1640505960]

約数ペア:

[(1, 1640505960), (2, 820252980), (3, 546835320), (4, 410126490), (5, 328101192), (6, 273417660), (8, 205063245), (9, 182278440), (10, 164050596), (12, 136708830), (15, 109367064), (18, 91139220), (20, 82025298), (24, 68354415), (27, 60759480), (30, 54683532), (36, 45569610), (40, 41012649), (45, 36455688), (54, 30379740), (60, 27341766), (72, 22784805), (81, 20253160), (90, 18227844), (108, 15189870), (120, 13670883), (135, 12151896), (162, 10126580), (180, 9113922), (216, 7594935), (270, 6075948), (324, 5063290), (360, 4556961), (405, 4050632), (540, 3037974), (648, 2531645), (810, 2025316), (1080, 1518987), (1620, 1012658), (3240, 506329)]