51389816

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 104755200

約数和(自身を除く): 53365384

約数列:

[1, 2, 4, 8, 31, 43, 61, 62, 79, 86, 122, 124, 158, 172, 244, 248, 316, 344, 488, 632, 1333, 1891, 2449, 2623, 2666, 3397, 3782, 4819, 4898, 5246, 5332, 6794, 7564, 9638, 9796, 10492, 10664, 13588, 15128, 19276, 19592, 20984, 27176, 38552, 81313, 105307, 149389, 162626, 207217, 210614, 298778, 325252, 414434, 421228, 597556, 650504, 828868, 842456, 1195112, 1657736, 6423727, 12847454, 25694908, 51389816]

約数ペア:

[(1, 51389816), (2, 25694908), (4, 12847454), (8, 6423727), (31, 1657736), (43, 1195112), (61, 842456), (62, 828868), (79, 650504), (86, 597556), (122, 421228), (124, 414434), (158, 325252), (172, 298778), (244, 210614), (248, 207217), (316, 162626), (344, 149389), (488, 105307), (632, 81313), (1333, 38552), (1891, 27176), (2449, 20984), (2623, 19592), (2666, 19276), (3397, 15128), (3782, 13588), (4819, 10664), (4898, 10492), (5246, 9796), (5332, 9638), (6794, 7564)]