20967184

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 29029616

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 59, 76, 112, 118, 133, 152, 167, 236, 266, 304, 334, 413, 472, 532, 668, 826, 944, 1064, 1121, 1169, 1336, 1652, 2128, 2242, 2338, 2672, 3173, 3304, 4484, 4676, 6346, 6608, 7847, 8968, 9352, 9853, 12692, 15694, 17936, 18704, 19706, 22211, 25384, 31388, 39412, 44422, 50768, 62776, 68971, 78824, 88844, 125552, 137942, 157648, 177688, 187207, 275884, 355376, 374414, 551768, 748828, 1103536, 1310449, 1497656, 2620898, 2995312, 5241796, 10483592, 20967184]

約数ペア:

[(1, 20967184), (2, 10483592), (4, 5241796), (7, 2995312), (8, 2620898), (14, 1497656), (16, 1310449), (19, 1103536), (28, 748828), (38, 551768), (56, 374414), (59, 355376), (76, 275884), (112, 187207), (118, 177688), (133, 157648), (152, 137942), (167, 125552), (236, 88844), (266, 78824), (304, 68971), (334, 62776), (413, 50768), (472, 44422), (532, 39412), (668, 31388), (826, 25384), (944, 22211), (1064, 19706), (1121, 18704), (1169, 17936), (1336, 15694), (1652, 12692), (2128, 9853), (2242, 9352), (2338, 8968), (2672, 7847), (3173, 6608), (3304, 6346), (4484, 4676)]