19802070

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:332

約数の個数: 96

約数和(自身を含む): 55429920

約数和(自身を除く): 35627850

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 81, 87, 90, 135, 145, 162, 174, 243, 261, 270, 281, 290, 405, 435, 486, 522, 562, 783, 810, 843, 870, 1215, 1305, 1405, 1566, 1686, 2349, 2430, 2529, 2610, 2810, 3915, 4215, 4698, 5058, 7047, 7587, 7830, 8149, 8430, 11745, 12645, 14094, 15174, 16298, 22761, 23490, 24447, 25290, 35235, 37935, 40745, 45522, 48894, 68283, 70470, 73341, 75870, 81490, 113805, 122235, 136566, 146682, 220023, 227610, 244470, 341415, 366705, 440046, 660069, 682830, 733410, 1100115, 1320138, 1980207, 2200230, 3300345, 3960414, 6600690, 9901035, 19802070]

約数ペア:

[(1, 19802070), (2, 9901035), (3, 6600690), (5, 3960414), (6, 3300345), (9, 2200230), (10, 1980207), (15, 1320138), (18, 1100115), (27, 733410), (29, 682830), (30, 660069), (45, 440046), (54, 366705), (58, 341415), (81, 244470), (87, 227610), (90, 220023), (135, 146682), (145, 136566), (162, 122235), (174, 113805), (243, 81490), (261, 75870), (270, 73341), (281, 70470), (290, 68283), (405, 48894), (435, 45522), (486, 40745), (522, 37935), (562, 35235), (783, 25290), (810, 24447), (843, 23490), (870, 22761), (1215, 16298), (1305, 15174), (1405, 14094), (1566, 12645), (1686, 11745), (2349, 8430), (2430, 8149), (2529, 7830), (2610, 7587), (2810, 7047), (3915, 5058), (4215, 4698)]