51013040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:478

約数の個数: 80

約数和(自身を含む): 128908416

約数和(自身を除く): 77895376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 181, 208, 260, 271, 362, 520, 542, 724, 905, 1040, 1084, 1355, 1448, 1810, 2168, 2353, 2710, 2896, 3523, 3620, 4336, 4706, 5420, 7046, 7240, 9412, 10840, 11765, 14092, 14480, 17615, 18824, 21680, 23530, 28184, 35230, 37648, 47060, 49051, 56368, 70460, 94120, 98102, 140920, 188240, 196204, 245255, 281840, 392408, 490510, 637663, 784816, 981020, 1275326, 1962040, 2550652, 3188315, 3924080, 5101304, 6376630, 10202608, 12753260, 25506520, 51013040]

約数ペア:

[(1, 51013040), (2, 25506520), (4, 12753260), (5, 10202608), (8, 6376630), (10, 5101304), (13, 3924080), (16, 3188315), (20, 2550652), (26, 1962040), (40, 1275326), (52, 981020), (65, 784816), (80, 637663), (104, 490510), (130, 392408), (181, 281840), (208, 245255), (260, 196204), (271, 188240), (362, 140920), (520, 98102), (542, 94120), (724, 70460), (905, 56368), (1040, 49051), (1084, 47060), (1355, 37648), (1448, 35230), (1810, 28184), (2168, 23530), (2353, 21680), (2710, 18824), (2896, 17615), (3523, 14480), (3620, 14092), (4336, 11765), (4706, 10840), (5420, 9412), (7046, 7240)]