204820420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2099}}^1$

素因数の和:2173

約数の個数: 96

約数和(自身を含む): 533433600

約数和(自身を除く): 328613180

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 41, 68, 70, 82, 85, 119, 140, 164, 170, 205, 238, 287, 340, 410, 476, 574, 595, 697, 820, 1148, 1190, 1394, 1435, 2099, 2380, 2788, 2870, 3485, 4198, 4879, 5740, 6970, 8396, 9758, 10495, 13940, 14693, 19516, 20990, 24395, 29386, 35683, 41980, 48790, 58772, 71366, 73465, 86059, 97580, 142732, 146930, 172118, 178415, 249781, 293860, 344236, 356830, 430295, 499562, 602413, 713660, 860590, 999124, 1204826, 1248905, 1463003, 1721180, 2409652, 2497810, 2926006, 3012065, 4995620, 5852012, 6024130, 7315015, 10241021, 12048260, 14630030, 20482042, 29260060, 40964084, 51205105, 102410210, 204820420]

約数ペア:

[(1, 204820420), (2, 102410210), (4, 51205105), (5, 40964084), (7, 29260060), (10, 20482042), (14, 14630030), (17, 12048260), (20, 10241021), (28, 7315015), (34, 6024130), (35, 5852012), (41, 4995620), (68, 3012065), (70, 2926006), (82, 2497810), (85, 2409652), (119, 1721180), (140, 1463003), (164, 1248905), (170, 1204826), (205, 999124), (238, 860590), (287, 713660), (340, 602413), (410, 499562), (476, 430295), (574, 356830), (595, 344236), (697, 293860), (820, 249781), (1148, 178415), (1190, 172118), (1394, 146930), (1435, 142732), (2099, 97580), (2380, 86059), (2788, 73465), (2870, 71366), (3485, 58772), (4198, 48790), (4879, 41980), (5740, 35683), (6970, 29386), (8396, 24395), (9758, 20990), (10495, 19516), (13940, 14693)]