20686890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4283}}^1$

素因数の和:4323

約数の個数: 64

約数和(自身を含む): 59222016

約数和(自身を除く): 38535126

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 210, 230, 322, 345, 483, 690, 805, 966, 1610, 2415, 4283, 4830, 8566, 12849, 21415, 25698, 29981, 42830, 59962, 64245, 89943, 98509, 128490, 149905, 179886, 197018, 295527, 299810, 449715, 492545, 591054, 689563, 899430, 985090, 1379126, 1477635, 2068689, 2955270, 3447815, 4137378, 6895630, 10343445, 20686890]

約数ペア:

[(1, 20686890), (2, 10343445), (3, 6895630), (5, 4137378), (6, 3447815), (7, 2955270), (10, 2068689), (14, 1477635), (15, 1379126), (21, 985090), (23, 899430), (30, 689563), (35, 591054), (42, 492545), (46, 449715), (69, 299810), (70, 295527), (105, 197018), (115, 179886), (138, 149905), (161, 128490), (210, 98509), (230, 89943), (322, 64245), (345, 59962), (483, 42830), (690, 29981), (805, 25698), (966, 21415), (1610, 12849), (2415, 8566), (4283, 4830)]