81313988

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1\times {\mathrm{367}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 167913984

約数和(自身を除く): 86599996

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 193, 287, 367, 386, 574, 734, 772, 1148, 1351, 1468, 2569, 2702, 5138, 5404, 7913, 10276, 15047, 15826, 30094, 31652, 55391, 60188, 70831, 105329, 110782, 141662, 210658, 221564, 283324, 421316, 495817, 991634, 1983268, 2904071, 5808142, 11616284, 20328497, 40656994, 81313988]

約数ペア:

[(1, 81313988), (2, 40656994), (4, 20328497), (7, 11616284), (14, 5808142), (28, 2904071), (41, 1983268), (82, 991634), (164, 495817), (193, 421316), (287, 283324), (367, 221564), (386, 210658), (574, 141662), (734, 110782), (772, 105329), (1148, 70831), (1351, 60188), (1468, 55391), (2569, 31652), (2702, 30094), (5138, 15826), (5404, 15047), (7913, 10276)]