202012020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9431}}^1$

素因数の和:9470

約数の個数: 144

約数和(自身を含む): 741581568

約数和(自身を除く): 539569548

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 2142, 2380, 3060, 3570, 4284, 5355, 7140, 9431, 10710, 18862, 21420, 28293, 37724, 47155, 56586, 66017, 84879, 94310, 113172, 132034, 141465, 160327, 169758, 188620, 198051, 264068, 282930, 320654, 330085, 339516, 396102, 424395, 480981, 565860, 594153, 641308, 660170, 792204, 801635, 848790, 961962, 990255, 1122289, 1188306, 1320340, 1442943, 1603270, 1697580, 1923924, 1980510, 2244578, 2376612, 2404905, 2885886, 2970765, 3206540, 3366867, 3961020, 4489156, 4809810, 5611445, 5771772, 5941530, 6733734, 7214715, 9619620, 10100601, 11222890, 11883060, 13467468, 14429430, 16834335, 20201202, 22445780, 28858860, 33668670, 40402404, 50503005, 67337340, 101006010, 202012020]

約数ペア:

[(1, 202012020), (2, 101006010), (3, 67337340), (4, 50503005), (5, 40402404), (6, 33668670), (7, 28858860), (9, 22445780), (10, 20201202), (12, 16834335), (14, 14429430), (15, 13467468), (17, 11883060), (18, 11222890), (20, 10100601), (21, 9619620), (28, 7214715), (30, 6733734), (34, 5941530), (35, 5771772), (36, 5611445), (42, 4809810), (45, 4489156), (51, 3961020), (60, 3366867), (63, 3206540), (68, 2970765), (70, 2885886), (84, 2404905), (85, 2376612), (90, 2244578), (102, 1980510), (105, 1923924), (119, 1697580), (126, 1603270), (140, 1442943), (153, 1320340), (170, 1188306), (180, 1122289), (204, 990255), (210, 961962), (238, 848790), (252, 801635), (255, 792204), (306, 660170), (315, 641308), (340, 594153), (357, 565860), (420, 480981), (476, 424395), (510, 396102), (595, 339516), (612, 330085), (630, 320654), (714, 282930), (765, 264068), (1020, 198051), (1071, 188620), (1190, 169758), (1260, 160327), (1428, 141465), (1530, 132034), (1785, 113172), (2142, 94310), (2380, 84879), (3060, 66017), (3570, 56586), (4284, 47155), (5355, 37724), (7140, 28293), (9431, 21420), (10710, 18862)]