289771760

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{23071}}^1$

素因数の和:23241

約数の個数: 40

約数和(自身を含む): 678039936

約数和(自身を除く): 388268176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 12560, 23071, 46142, 92284, 115355, 184568, 230710, 369136, 461420, 922840, 1845680, 3622147, 7244294, 14488588, 18110735, 28977176, 36221470, 57954352, 72442940, 144885880, 289771760]

約数ペア:

[(1, 289771760), (2, 144885880), (4, 72442940), (5, 57954352), (8, 36221470), (10, 28977176), (16, 18110735), (20, 14488588), (40, 7244294), (80, 3622147), (157, 1845680), (314, 922840), (628, 461420), (785, 369136), (1256, 230710), (1570, 184568), (2512, 115355), (3140, 92284), (6280, 46142), (12560, 23071)]