890702002

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1\times {\mathrm{443}}^1$

素因数の和:978

約数の個数: 32

約数和(自身を含む): 1413624960

約数和(自身を除く): 522922958

約数列:

[1, 2, 23, 46, 109, 218, 401, 443, 802, 886, 2507, 5014, 9223, 10189, 18446, 20378, 43709, 48287, 87418, 96574, 177643, 355286, 1005307, 1110601, 2010614, 2221202, 4085789, 8171578, 19363087, 38726174, 445351001, 890702002]

約数ペア:

[(1, 890702002), (2, 445351001), (23, 38726174), (46, 19363087), (109, 8171578), (218, 4085789), (401, 2221202), (443, 2010614), (802, 1110601), (886, 1005307), (2507, 355286), (5014, 177643), (9223, 96574), (10189, 87418), (18446, 48287), (20378, 43709)]