19938642712

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{17903}}^1$

素因数の和:18376

約数の個数: 64

約数和(自身を含む): 41766451200

約数和(自身を除く): 21827808488

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 431, 646, 862, 1292, 1724, 2584, 3448, 7327, 8189, 14654, 16378, 17903, 29308, 32756, 35806, 58616, 65512, 71612, 139213, 143224, 278426, 304351, 340157, 556852, 608702, 680314, 1113704, 1217404, 1360628, 2434808, 2721256, 5782669, 7716193, 11565338, 15432386, 23130676, 30864772, 46261352, 61729544, 131175281, 146607667, 262350562, 293215334, 524701124, 586430668, 1049402248, 1172861336, 2492330339, 4984660678, 9969321356, 19938642712]

約数ペア:

[(1, 19938642712), (2, 9969321356), (4, 4984660678), (8, 2492330339), (17, 1172861336), (19, 1049402248), (34, 586430668), (38, 524701124), (68, 293215334), (76, 262350562), (136, 146607667), (152, 131175281), (323, 61729544), (431, 46261352), (646, 30864772), (862, 23130676), (1292, 15432386), (1724, 11565338), (2584, 7716193), (3448, 5782669), (7327, 2721256), (8189, 2434808), (14654, 1360628), (16378, 1217404), (17903, 1113704), (29308, 680314), (32756, 608702), (35806, 556852), (58616, 340157), (65512, 304351), (71612, 278426), (139213, 143224)]