81307020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{13417}}^1$

素因数の和:13530

約数の個数: 48

約数和(自身を含む): 229930848

約数和(自身を除く): 148623828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 303, 404, 505, 606, 1010, 1212, 1515, 2020, 3030, 6060, 13417, 26834, 40251, 53668, 67085, 80502, 134170, 161004, 201255, 268340, 402510, 805020, 1355117, 2710234, 4065351, 5420468, 6775585, 8130702, 13551170, 16261404, 20326755, 27102340, 40653510, 81307020]

約数ペア:

[(1, 81307020), (2, 40653510), (3, 27102340), (4, 20326755), (5, 16261404), (6, 13551170), (10, 8130702), (12, 6775585), (15, 5420468), (20, 4065351), (30, 2710234), (60, 1355117), (101, 805020), (202, 402510), (303, 268340), (404, 201255), (505, 161004), (606, 134170), (1010, 80502), (1212, 67085), (1515, 53668), (2020, 40251), (3030, 26834), (6060, 13417)]