18968260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1187}}^1$

素因数の和:1260

約数の個数: 48

約数和(自身を含む): 43110144

約数和(自身を除く): 24141884

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1187, 1598, 2374, 3196, 3995, 4748, 5935, 7990, 11870, 15980, 20179, 23740, 40358, 55789, 80716, 100895, 111578, 201790, 223156, 278945, 403580, 557890, 948413, 1115780, 1896826, 3793652, 4742065, 9484130, 18968260]

約数ペア:

[(1, 18968260), (2, 9484130), (4, 4742065), (5, 3793652), (10, 1896826), (17, 1115780), (20, 948413), (34, 557890), (47, 403580), (68, 278945), (85, 223156), (94, 201790), (170, 111578), (188, 100895), (235, 80716), (340, 55789), (470, 40358), (799, 23740), (940, 20179), (1187, 15980), (1598, 11870), (2374, 7990), (3196, 5935), (3995, 4748)]