890348170

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{2579}}^1$

素因数の和:2707

約数の個数: 64

約数和(自身を含む): 1783296000

約数和(自身を除く): 892947830

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 79, 95, 115, 158, 190, 230, 395, 437, 790, 874, 1501, 1817, 2185, 2579, 3002, 3634, 4370, 5158, 7505, 9085, 12895, 15010, 18170, 25790, 34523, 49001, 59317, 69046, 98002, 118634, 172615, 203741, 245005, 296585, 345230, 407482, 490010, 593170, 1018705, 1127023, 2037410, 2254046, 3871079, 4686043, 5635115, 7742158, 9372086, 11270230, 19355395, 23430215, 38710790, 46860430, 89034817, 178069634, 445174085, 890348170]

約数ペア:

[(1, 890348170), (2, 445174085), (5, 178069634), (10, 89034817), (19, 46860430), (23, 38710790), (38, 23430215), (46, 19355395), (79, 11270230), (95, 9372086), (115, 7742158), (158, 5635115), (190, 4686043), (230, 3871079), (395, 2254046), (437, 2037410), (790, 1127023), (874, 1018705), (1501, 593170), (1817, 490010), (2185, 407482), (2579, 345230), (3002, 296585), (3634, 245005), (4370, 203741), (5158, 172615), (7505, 118634), (9085, 98002), (12895, 69046), (15010, 59317), (18170, 49001), (25790, 34523)]