1286277890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:635

約数の個数: 64

約数和(自身を含む): 2449440000

約数和(自身を除く): 1163162110

約数列:

[1, 2, 5, 10, 29, 58, 71, 142, 145, 179, 290, 349, 355, 358, 698, 710, 895, 1745, 1790, 2059, 3490, 4118, 5191, 10121, 10295, 10382, 12709, 20242, 20590, 24779, 25418, 25955, 49558, 50605, 51910, 62471, 63545, 101210, 123895, 124942, 127090, 247790, 312355, 368561, 624710, 718591, 737122, 1437182, 1811659, 1842805, 3592955, 3623318, 3685610, 4435441, 7185910, 8870882, 9058295, 18116590, 22177205, 44354410, 128627789, 257255578, 643138945, 1286277890]

約数ペア:

[(1, 1286277890), (2, 643138945), (5, 257255578), (10, 128627789), (29, 44354410), (58, 22177205), (71, 18116590), (142, 9058295), (145, 8870882), (179, 7185910), (290, 4435441), (349, 3685610), (355, 3623318), (358, 3592955), (698, 1842805), (710, 1811659), (895, 1437182), (1745, 737122), (1790, 718591), (2059, 624710), (3490, 368561), (4118, 312355), (5191, 247790), (10121, 127090), (10295, 124942), (10382, 123895), (12709, 101210), (20242, 63545), (20590, 62471), (24779, 51910), (25418, 50605), (25955, 49558)]