78419670

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{887}}^1$

素因数の和:1325

約数の個数: 64

約数和(自身を含む): 215847936

約数和(自身を除く): 137428266

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 421, 842, 887, 1263, 1774, 2105, 2526, 2661, 2947, 4210, 4435, 5322, 5894, 6209, 6315, 8841, 8870, 12418, 12630, 13305, 14735, 17682, 18627, 26610, 29470, 31045, 37254, 44205, 62090, 88410, 93135, 186270, 373427, 746854, 1120281, 1867135, 2240562, 2613989, 3734270, 5227978, 5601405, 7841967, 11202810, 13069945, 15683934, 26139890, 39209835, 78419670]

約数ペア:

[(1, 78419670), (2, 39209835), (3, 26139890), (5, 15683934), (6, 13069945), (7, 11202810), (10, 7841967), (14, 5601405), (15, 5227978), (21, 3734270), (30, 2613989), (35, 2240562), (42, 1867135), (70, 1120281), (105, 746854), (210, 373427), (421, 186270), (842, 93135), (887, 88410), (1263, 62090), (1774, 44205), (2105, 37254), (2526, 31045), (2661, 29470), (2947, 26610), (4210, 18627), (4435, 17682), (5322, 14735), (5894, 13305), (6209, 12630), (6315, 12418), (8841, 8870)]