81471276

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{557}}^1$

素因数の和:823

約数の個数: 72

約数和(自身を含む): 219360960

約数和(自身を除く): 137889684

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 239, 306, 478, 557, 612, 717, 956, 1114, 1434, 1671, 2151, 2228, 2868, 3342, 4063, 4302, 5013, 6684, 8126, 8604, 9469, 10026, 12189, 16252, 18938, 20052, 24378, 28407, 36567, 37876, 48756, 56814, 73134, 85221, 113628, 133123, 146268, 170442, 266246, 340884, 399369, 532492, 798738, 1198107, 1597476, 2263091, 2396214, 4526182, 4792428, 6789273, 9052364, 13578546, 20367819, 27157092, 40735638, 81471276]

約数ペア:

[(1, 81471276), (2, 40735638), (3, 27157092), (4, 20367819), (6, 13578546), (9, 9052364), (12, 6789273), (17, 4792428), (18, 4526182), (34, 2396214), (36, 2263091), (51, 1597476), (68, 1198107), (102, 798738), (153, 532492), (204, 399369), (239, 340884), (306, 266246), (478, 170442), (557, 146268), (612, 133123), (717, 113628), (956, 85221), (1114, 73134), (1434, 56814), (1671, 48756), (2151, 37876), (2228, 36567), (2868, 28407), (3342, 24378), (4063, 20052), (4302, 18938), (5013, 16252), (6684, 12189), (8126, 10026), (8604, 9469)]