20318996976

素因数分解:

$2^4\times 3^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{55721}}^1$

素因数の和:55910

約数の個数: 80

約数和(自身を含む): 53728489728

約数和(自身を除く): 33409492752

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 71, 107, 142, 213, 214, 284, 321, 426, 428, 568, 642, 852, 856, 1136, 1284, 1704, 1712, 2568, 3408, 5136, 7597, 15194, 22791, 30388, 45582, 55721, 60776, 91164, 111442, 121552, 167163, 182328, 222884, 334326, 364656, 445768, 668652, 891536, 1337304, 2674608, 3956191, 5962147, 7912382, 11868573, 11924294, 15824764, 17886441, 23737146, 23848588, 31649528, 35772882, 47474292, 47697176, 63299056, 71545764, 94948584, 95394352, 143091528, 189897168, 286183056, 423312437, 846624874, 1269937311, 1693249748, 2539874622, 3386499496, 5079749244, 6772998992, 10159498488, 20318996976]

約数ペア:

[(1, 20318996976), (2, 10159498488), (3, 6772998992), (4, 5079749244), (6, 3386499496), (8, 2539874622), (12, 1693249748), (16, 1269937311), (24, 846624874), (48, 423312437), (71, 286183056), (107, 189897168), (142, 143091528), (213, 95394352), (214, 94948584), (284, 71545764), (321, 63299056), (426, 47697176), (428, 47474292), (568, 35772882), (642, 31649528), (852, 23848588), (856, 23737146), (1136, 17886441), (1284, 15824764), (1704, 11924294), (1712, 11868573), (2568, 7912382), (3408, 5962147), (5136, 3956191), (7597, 2674608), (15194, 1337304), (22791, 891536), (30388, 668652), (45582, 445768), (55721, 364656), (60776, 334326), (91164, 222884), (111442, 182328), (121552, 167163)]