19400156945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1\times {\mathrm{8039}}^1$

素因数の和:8465

約数の個数: 32

約数和(自身を含む): 25350312960

約数和(自身を除く): 5950156015

約数列:

[1, 5, 13, 65, 137, 271, 685, 1355, 1781, 3523, 8039, 8905, 17615, 37127, 40195, 104507, 185635, 482651, 522535, 1101343, 2178569, 2413255, 5506715, 10892845, 14317459, 28321397, 71587295, 141606985, 298463953, 1492319765, 3880031389, 19400156945]

約数ペア:

[(1, 19400156945), (5, 3880031389), (13, 1492319765), (65, 298463953), (137, 141606985), (271, 71587295), (685, 28321397), (1355, 14317459), (1781, 10892845), (3523, 5506715), (8039, 2413255), (8905, 2178569), (17615, 1101343), (37127, 522535), (40195, 482651), (104507, 185635)]