19998793976

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{437113}}^1$

素因数の和:437188

約数の個数: 64

約数和(自身を含む): 46159238400

約数和(自身を除く): 26160444424

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 43, 56, 76, 86, 133, 152, 172, 266, 301, 344, 532, 602, 817, 1064, 1204, 1634, 2408, 3268, 5719, 6536, 11438, 22876, 45752, 437113, 874226, 1748452, 3059791, 3496904, 6119582, 8305147, 12239164, 16610294, 18795859, 24478328, 33220588, 37591718, 58136029, 66441176, 75183436, 116272058, 131571013, 150366872, 232544116, 263142026, 357121321, 465088232, 526284052, 714242642, 1052568104, 1428485284, 2499849247, 2856970568, 4999698494, 9999396988, 19998793976]

約数ペア:

[(1, 19998793976), (2, 9999396988), (4, 4999698494), (7, 2856970568), (8, 2499849247), (14, 1428485284), (19, 1052568104), (28, 714242642), (38, 526284052), (43, 465088232), (56, 357121321), (76, 263142026), (86, 232544116), (133, 150366872), (152, 131571013), (172, 116272058), (266, 75183436), (301, 66441176), (344, 58136029), (532, 37591718), (602, 33220588), (817, 24478328), (1064, 18795859), (1204, 16610294), (1634, 12239164), (2408, 8305147), (3268, 6119582), (5719, 3496904), (6536, 3059791), (11438, 1748452), (22876, 874226), (45752, 437113)]