19842272

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 20800288

約数列:

[1, 2, 4, 8, 16, 32, 47, 79, 94, 158, 167, 188, 316, 334, 376, 632, 668, 752, 1264, 1336, 1504, 2528, 2672, 3713, 5344, 7426, 7849, 13193, 14852, 15698, 26386, 29704, 31396, 52772, 59408, 62792, 105544, 118816, 125584, 211088, 251168, 422176, 620071, 1240142, 2480284, 4960568, 9921136, 19842272]

約数ペア:

[(1, 19842272), (2, 9921136), (4, 4960568), (8, 2480284), (16, 1240142), (32, 620071), (47, 422176), (79, 251168), (94, 211088), (158, 125584), (167, 118816), (188, 105544), (316, 62792), (334, 59408), (376, 52772), (632, 31396), (668, 29704), (752, 26386), (1264, 15698), (1336, 14852), (1504, 13193), (2528, 7849), (2672, 7426), (3713, 5344)]