19984960

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^2\times {\mathrm{173}}^1$

素因数の和:228

約数の個数: 84

約数和(自身を含む): 50516028

約数和(自身を除く): 30531068

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 173, 190, 304, 320, 346, 361, 380, 608, 692, 722, 760, 865, 1216, 1384, 1444, 1520, 1730, 1805, 2768, 2888, 3040, 3287, 3460, 3610, 5536, 5776, 6080, 6574, 6920, 7220, 11072, 11552, 13148, 13840, 14440, 16435, 23104, 26296, 27680, 28880, 32870, 52592, 55360, 57760, 62453, 65740, 105184, 115520, 124906, 131480, 210368, 249812, 262960, 312265, 499624, 525920, 624530, 999248, 1051840, 1249060, 1998496, 2498120, 3996992, 4996240, 9992480, 19984960]

約数ペア:

[(1, 19984960), (2, 9992480), (4, 4996240), (5, 3996992), (8, 2498120), (10, 1998496), (16, 1249060), (19, 1051840), (20, 999248), (32, 624530), (38, 525920), (40, 499624), (64, 312265), (76, 262960), (80, 249812), (95, 210368), (152, 131480), (160, 124906), (173, 115520), (190, 105184), (304, 65740), (320, 62453), (346, 57760), (361, 55360), (380, 52592), (608, 32870), (692, 28880), (722, 27680), (760, 26296), (865, 23104), (1216, 16435), (1384, 14440), (1444, 13840), (1520, 13148), (1730, 11552), (1805, 11072), (2768, 7220), (2888, 6920), (3040, 6574), (3287, 6080), (3460, 5776), (3610, 5536)]