161616280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1787}}^1$

素因数の和:1841

約数の個数: 128

約数和(自身を含む): 463449600

約数和(自身を除く): 301833320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 380, 476, 532, 595, 646, 665, 680, 760, 952, 1064, 1190, 1292, 1330, 1615, 1787, 2261, 2380, 2584, 2660, 3230, 3574, 4522, 4760, 5320, 6460, 7148, 8935, 9044, 11305, 12509, 12920, 14296, 17870, 18088, 22610, 25018, 30379, 33953, 35740, 45220, 50036, 60758, 62545, 67906, 71480, 90440, 100072, 121516, 125090, 135812, 151895, 169765, 212653, 237671, 243032, 250180, 271624, 303790, 339530, 425306, 475342, 500360, 577201, 607580, 679060, 850612, 950684, 1063265, 1154402, 1188355, 1215160, 1358120, 1701224, 1901368, 2126530, 2308804, 2376710, 2886005, 4040407, 4253060, 4617608, 4753420, 5772010, 8080814, 8506120, 9506840, 11544020, 16161628, 20202035, 23088040, 32323256, 40404070, 80808140, 161616280]

約数ペア:

[(1, 161616280), (2, 80808140), (4, 40404070), (5, 32323256), (7, 23088040), (8, 20202035), (10, 16161628), (14, 11544020), (17, 9506840), (19, 8506120), (20, 8080814), (28, 5772010), (34, 4753420), (35, 4617608), (38, 4253060), (40, 4040407), (56, 2886005), (68, 2376710), (70, 2308804), (76, 2126530), (85, 1901368), (95, 1701224), (119, 1358120), (133, 1215160), (136, 1188355), (140, 1154402), (152, 1063265), (170, 950684), (190, 850612), (238, 679060), (266, 607580), (280, 577201), (323, 500360), (340, 475342), (380, 425306), (476, 339530), (532, 303790), (595, 271624), (646, 250180), (665, 243032), (680, 237671), (760, 212653), (952, 169765), (1064, 151895), (1190, 135812), (1292, 125090), (1330, 121516), (1615, 100072), (1787, 90440), (2261, 71480), (2380, 67906), (2584, 62545), (2660, 60758), (3230, 50036), (3574, 45220), (4522, 35740), (4760, 33953), (5320, 30379), (6460, 25018), (7148, 22610), (8935, 18088), (9044, 17870), (11305, 14296), (12509, 12920)]