20199639.000000000

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2213}}^1$

素因数の和:2277

約数の個数: 64

約数和(自身を含む): 361324800

約数和(自身を除く): 194482304

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 128, 152, 248, 304, 496, 589, 608, 992, 1178, 1216, 1984, 2213, 2356, 2432, 3968, 4426, 4712, 8852, 9424, 17704, 18848, 35408, 37696, 42047, 68603, 70816, 75392, 84094, 137206, 141632, 168188, 274412, 283264, 336376, 548824, 672752, 1097648, 1303457, 1345504, 2195296, 2606914, 2691008, 4390592, 5213828, 5382016, 8781184, 10427656, 20855312, 41710624, 83421248, 166842496]

約数ペア:

[(1, 166842496), (2, 83421248), (4, 41710624), (8, 20855312), (16, 10427656), (19, 8781184), (31, 5382016), (32, 5213828), (38, 4390592), (62, 2691008), (64, 2606914), (76, 2195296), (124, 1345504), (128, 1303457), (152, 1097648), (248, 672752), (304, 548824), (496, 336376), (589, 283264), (608, 274412), (992, 168188), (1178, 141632), (1216, 137206), (1984, 84094), (2213, 75392), (2356, 70816), (2432, 68603), (3968, 42047), (4426, 37696), (4712, 35408), (8852, 18848), (9424, 17704)]