81365216

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:715

約数の個数: 48

約数和(自身を含む): 165333168

約数和(自身を除く): 83967952

約数列:

[1, 2, 4, 8, 16, 32, 61, 73, 122, 146, 244, 292, 488, 571, 584, 976, 1142, 1168, 1952, 2284, 2336, 4453, 4568, 8906, 9136, 17812, 18272, 34831, 35624, 41683, 69662, 71248, 83366, 139324, 142496, 166732, 278648, 333464, 557296, 666928, 1114592, 1333856, 2542663, 5085326, 10170652, 20341304, 40682608, 81365216]

約数ペア:

[(1, 81365216), (2, 40682608), (4, 20341304), (8, 10170652), (16, 5085326), (32, 2542663), (61, 1333856), (73, 1114592), (122, 666928), (146, 557296), (244, 333464), (292, 278648), (488, 166732), (571, 142496), (584, 139324), (976, 83366), (1142, 71248), (1168, 69662), (1952, 41683), (2284, 35624), (2336, 34831), (4453, 18272), (4568, 17812), (8906, 9136)]