13181620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 29111040

約数和(自身を除く): 15929420

約数列:

[1, 2, 4, 5, 10, 20, 37, 47, 74, 94, 148, 185, 188, 235, 370, 379, 470, 740, 758, 940, 1516, 1739, 1895, 3478, 3790, 6956, 7580, 8695, 14023, 17390, 17813, 28046, 34780, 35626, 56092, 70115, 71252, 89065, 140230, 178130, 280460, 356260, 659081, 1318162, 2636324, 3295405, 6590810, 13181620]

約数ペア:

[(1, 13181620), (2, 6590810), (4, 3295405), (5, 2636324), (10, 1318162), (20, 659081), (37, 356260), (47, 280460), (74, 178130), (94, 140230), (148, 89065), (185, 71252), (188, 70115), (235, 56092), (370, 35626), (379, 34780), (470, 28046), (740, 17813), (758, 17390), (940, 14023), (1516, 8695), (1739, 7580), (1895, 6956), (3478, 3790)]