19994623184

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{139987}}^1$

素因数の和:140187

約数の個数: 40

約数和(自身を含む): 39577407360

約数和(自身を除く): 19582784176

約数列:

[1, 2, 4, 8, 16, 79, 113, 158, 226, 316, 452, 632, 904, 1264, 1808, 8927, 17854, 35708, 71416, 139987, 142832, 279974, 559948, 1119896, 2239792, 11058973, 15818531, 22117946, 31637062, 44235892, 63274124, 88471784, 126548248, 176943568, 253096496, 1249663949, 2499327898, 4998655796, 9997311592, 19994623184]

約数ペア:

[(1, 19994623184), (2, 9997311592), (4, 4998655796), (8, 2499327898), (16, 1249663949), (79, 253096496), (113, 176943568), (158, 126548248), (226, 88471784), (316, 63274124), (452, 44235892), (632, 31637062), (904, 22117946), (1264, 15818531), (1808, 11058973), (8927, 2239792), (17854, 1119896), (35708, 559948), (71416, 279974), (139987, 142832)]