40289968

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:581

約数の個数: 40

約数和(自身を含む): 80601488

約数和(自身を除く): 40311520

約数列:

[1, 2, 4, 8, 16, 43, 86, 157, 172, 314, 344, 373, 628, 688, 746, 1256, 1492, 2512, 2984, 5968, 6751, 13502, 16039, 27004, 32078, 54008, 58561, 64156, 108016, 117122, 128312, 234244, 256624, 468488, 936976, 2518123, 5036246, 10072492, 20144984, 40289968]

約数ペア:

[(1, 40289968), (2, 20144984), (4, 10072492), (8, 5036246), (16, 2518123), (43, 936976), (86, 468488), (157, 256624), (172, 234244), (314, 128312), (344, 117122), (373, 108016), (628, 64156), (688, 58561), (746, 54008), (1256, 32078), (1492, 27004), (2512, 16039), (2984, 13502), (5968, 6751)]