20011472

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 24985648

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 47, 52, 89, 92, 94, 104, 178, 184, 188, 208, 299, 356, 368, 376, 598, 611, 712, 752, 1081, 1157, 1196, 1222, 1424, 2047, 2162, 2314, 2392, 2444, 4094, 4183, 4324, 4628, 4784, 4888, 8188, 8366, 8648, 9256, 9776, 14053, 16376, 16732, 17296, 18512, 26611, 28106, 32752, 33464, 53222, 54379, 56212, 66928, 96209, 106444, 108758, 112424, 192418, 212888, 217516, 224848, 384836, 425776, 435032, 769672, 870064, 1250717, 1539344, 2501434, 5002868, 10005736, 20011472]

約数ペア:

[(1, 20011472), (2, 10005736), (4, 5002868), (8, 2501434), (13, 1539344), (16, 1250717), (23, 870064), (26, 769672), (46, 435032), (47, 425776), (52, 384836), (89, 224848), (92, 217516), (94, 212888), (104, 192418), (178, 112424), (184, 108758), (188, 106444), (208, 96209), (299, 66928), (356, 56212), (368, 54379), (376, 53222), (598, 33464), (611, 32752), (712, 28106), (752, 26611), (1081, 18512), (1157, 17296), (1196, 16732), (1222, 16376), (1424, 14053), (2047, 9776), (2162, 9256), (2314, 8648), (2392, 8366), (2444, 8188), (4094, 4888), (4183, 4784), (4324, 4628)]