290433040

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{21739}}^1$

素因数の和:21919

約数の個数: 40

約数和(自身を含む): 679331520

約数和(自身を除く): 388898480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 1336, 1670, 2672, 3340, 6680, 13360, 21739, 43478, 86956, 108695, 173912, 217390, 347824, 434780, 869560, 1739120, 3630413, 7260826, 14521652, 18152065, 29043304, 36304130, 58086608, 72608260, 145216520, 290433040]

約数ペア:

[(1, 290433040), (2, 145216520), (4, 72608260), (5, 58086608), (8, 36304130), (10, 29043304), (16, 18152065), (20, 14521652), (40, 7260826), (80, 3630413), (167, 1739120), (334, 869560), (668, 434780), (835, 347824), (1336, 217390), (1670, 173912), (2672, 108695), (3340, 86956), (6680, 43478), (13360, 21739)]