145216520

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{21739}}^1$

素因数の和:21917

約数の個数: 32

約数和(自身を含む): 328708800

約数和(自身を除く): 183492280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 3340, 6680, 21739, 43478, 86956, 108695, 173912, 217390, 434780, 869560, 3630413, 7260826, 14521652, 18152065, 29043304, 36304130, 72608260, 145216520]

約数ペア:

[(1, 145216520), (2, 72608260), (4, 36304130), (5, 29043304), (8, 18152065), (10, 14521652), (20, 7260826), (40, 3630413), (167, 869560), (334, 434780), (668, 217390), (835, 173912), (1336, 108695), (1670, 86956), (3340, 43478), (6680, 21739)]