18980493876

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{70571}}^1$

素因数の和:70853

約数の個数: 72

約数和(自身を含む): 49732370688

約数和(自身を除く): 30751876812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 241, 279, 372, 482, 558, 723, 964, 1116, 1446, 2169, 2892, 4338, 7471, 8676, 14942, 22413, 29884, 44826, 67239, 70571, 89652, 134478, 141142, 211713, 268956, 282284, 423426, 635139, 846852, 1270278, 2187701, 2540556, 4375402, 6563103, 8750804, 13126206, 17007611, 19689309, 26252412, 34015222, 39378618, 51022833, 68030444, 78757236, 102045666, 153068499, 204091332, 306136998, 527235941, 612273996, 1054471882, 1581707823, 2108943764, 3163415646, 4745123469, 6326831292, 9490246938, 18980493876]

約数ペア:

[(1, 18980493876), (2, 9490246938), (3, 6326831292), (4, 4745123469), (6, 3163415646), (9, 2108943764), (12, 1581707823), (18, 1054471882), (31, 612273996), (36, 527235941), (62, 306136998), (93, 204091332), (124, 153068499), (186, 102045666), (241, 78757236), (279, 68030444), (372, 51022833), (482, 39378618), (558, 34015222), (723, 26252412), (964, 19689309), (1116, 17007611), (1446, 13126206), (2169, 8750804), (2892, 6563103), (4338, 4375402), (7471, 2540556), (8676, 2187701), (14942, 1270278), (22413, 846852), (29884, 635139), (44826, 423426), (67239, 282284), (70571, 268956), (89652, 211713), (134478, 141142)]