81765538

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:402

約数の個数: 32

約数和(自身を含む): 130636800

約数和(自身を除く): 48871262

約数列:

[1, 2, 31, 53, 62, 106, 149, 167, 298, 334, 1643, 3286, 4619, 5177, 7897, 8851, 9238, 10354, 15794, 17702, 24883, 49766, 244807, 274381, 489614, 548762, 771373, 1318799, 1542746, 2637598, 40882769, 81765538]

約数ペア:

[(1, 81765538), (2, 40882769), (31, 2637598), (53, 1542746), (62, 1318799), (106, 771373), (149, 548762), (167, 489614), (298, 274381), (334, 244807), (1643, 49766), (3286, 24883), (4619, 17702), (5177, 15794), (7897, 10354), (8851, 9238)]