205107420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:380

約数の個数: 192

約数和(自身を含む): 690471936

約数和(自身を除く): 485364516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 43, 60, 70, 82, 84, 86, 105, 123, 129, 140, 164, 172, 205, 210, 215, 246, 258, 277, 287, 301, 410, 420, 430, 492, 516, 554, 574, 602, 615, 645, 820, 831, 860, 861, 903, 1108, 1148, 1204, 1230, 1290, 1385, 1435, 1505, 1662, 1722, 1763, 1806, 1939, 2460, 2580, 2770, 2870, 3010, 3324, 3444, 3526, 3612, 3878, 4155, 4305, 4515, 5289, 5540, 5740, 5817, 6020, 7052, 7756, 8310, 8610, 8815, 9030, 9695, 10578, 11357, 11634, 11911, 12341, 16620, 17220, 17630, 18060, 19390, 21156, 22714, 23268, 23822, 24682, 26445, 29085, 34071, 35260, 35733, 37023, 38780, 45428, 47644, 49364, 52890, 56785, 58170, 59555, 61705, 68142, 71466, 74046, 79499, 83377, 105780, 113570, 116340, 119110, 123410, 136284, 142932, 148092, 158998, 166754, 170355, 178665, 185115, 227140, 238220, 238497, 246820, 250131, 317996, 333508, 340710, 357330, 370230, 397495, 416885, 476994, 488351, 500262, 681420, 714660, 740460, 794990, 833770, 953988, 976702, 1000524, 1192485, 1250655, 1465053, 1589980, 1667540, 1953404, 2384970, 2441755, 2501310, 2930106, 3418457, 4769940, 4883510, 5002620, 5860212, 6836914, 7325265, 9767020, 10255371, 13673828, 14650530, 17092285, 20510742, 29301060, 34184570, 41021484, 51276855, 68369140, 102553710, 205107420]

約数ペア:

[(1, 205107420), (2, 102553710), (3, 68369140), (4, 51276855), (5, 41021484), (6, 34184570), (7, 29301060), (10, 20510742), (12, 17092285), (14, 14650530), (15, 13673828), (20, 10255371), (21, 9767020), (28, 7325265), (30, 6836914), (35, 5860212), (41, 5002620), (42, 4883510), (43, 4769940), (60, 3418457), (70, 2930106), (82, 2501310), (84, 2441755), (86, 2384970), (105, 1953404), (123, 1667540), (129, 1589980), (140, 1465053), (164, 1250655), (172, 1192485), (205, 1000524), (210, 976702), (215, 953988), (246, 833770), (258, 794990), (277, 740460), (287, 714660), (301, 681420), (410, 500262), (420, 488351), (430, 476994), (492, 416885), (516, 397495), (554, 370230), (574, 357330), (602, 340710), (615, 333508), (645, 317996), (820, 250131), (831, 246820), (860, 238497), (861, 238220), (903, 227140), (1108, 185115), (1148, 178665), (1204, 170355), (1230, 166754), (1290, 158998), (1385, 148092), (1435, 142932), (1505, 136284), (1662, 123410), (1722, 119110), (1763, 116340), (1806, 113570), (1939, 105780), (2460, 83377), (2580, 79499), (2770, 74046), (2870, 71466), (3010, 68142), (3324, 61705), (3444, 59555), (3526, 58170), (3612, 56785), (3878, 52890), (4155, 49364), (4305, 47644), (4515, 45428), (5289, 38780), (5540, 37023), (5740, 35733), (5817, 35260), (6020, 34071), (7052, 29085), (7756, 26445), (8310, 24682), (8610, 23822), (8815, 23268), (9030, 22714), (9695, 21156), (10578, 19390), (11357, 18060), (11634, 17630), (11911, 17220), (12341, 16620)]