19891480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3739}}^1$

素因数の和:3776

約数の個数: 64

約数和(自身を含む): 53856000

約数和(自身を除く): 33964520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3739, 5320, 7478, 14956, 18695, 26173, 29912, 37390, 52346, 71041, 74780, 104692, 130865, 142082, 149560, 209384, 261730, 284164, 355205, 497287, 523460, 568328, 710410, 994574, 1046920, 1420820, 1989148, 2486435, 2841640, 3978296, 4972870, 9945740, 19891480]

約数ペア:

[(1, 19891480), (2, 9945740), (4, 4972870), (5, 3978296), (7, 2841640), (8, 2486435), (10, 1989148), (14, 1420820), (19, 1046920), (20, 994574), (28, 710410), (35, 568328), (38, 523460), (40, 497287), (56, 355205), (70, 284164), (76, 261730), (95, 209384), (133, 149560), (140, 142082), (152, 130865), (190, 104692), (266, 74780), (280, 71041), (380, 52346), (532, 37390), (665, 29912), (760, 26173), (1064, 18695), (1330, 14956), (2660, 7478), (3739, 5320)]