15931881212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{210283}}^1$

素因数の和:210378

約数の個数: 48

約数和(自身を含む): 31653629952

約数和(自身を除く): 15721748740

約数列:

[1, 2, 4, 13, 26, 31, 47, 52, 62, 94, 124, 188, 403, 611, 806, 1222, 1457, 1612, 2444, 2914, 5828, 18941, 37882, 75764, 210283, 420566, 841132, 2733679, 5467358, 6518773, 9883301, 10934716, 13037546, 19766602, 26075092, 39533204, 84744049, 128482913, 169488098, 256965826, 306382331, 338976196, 513931652, 612764662, 1225529324, 3982970303, 7965940606, 15931881212]

約数ペア:

[(1, 15931881212), (2, 7965940606), (4, 3982970303), (13, 1225529324), (26, 612764662), (31, 513931652), (47, 338976196), (52, 306382331), (62, 256965826), (94, 169488098), (124, 128482913), (188, 84744049), (403, 39533204), (611, 26075092), (806, 19766602), (1222, 13037546), (1457, 10934716), (1612, 9883301), (2444, 6518773), (2914, 5467358), (5828, 2733679), (18941, 841132), (37882, 420566), (75764, 210283)]