2790040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 7270560

約数和(自身を除く): 4480520

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 373, 374, 440, 680, 746, 748, 935, 1492, 1496, 1865, 1870, 2984, 3730, 3740, 4103, 6341, 7460, 7480, 8206, 12682, 14920, 16412, 20515, 25364, 31705, 32824, 41030, 50728, 63410, 69751, 82060, 126820, 139502, 164120, 253640, 279004, 348755, 558008, 697510, 1395020, 2790040]

約数ペア:

[(1, 2790040), (2, 1395020), (4, 697510), (5, 558008), (8, 348755), (10, 279004), (11, 253640), (17, 164120), (20, 139502), (22, 126820), (34, 82060), (40, 69751), (44, 63410), (55, 50728), (68, 41030), (85, 32824), (88, 31705), (110, 25364), (136, 20515), (170, 16412), (187, 14920), (220, 12682), (340, 8206), (373, 7480), (374, 7460), (440, 6341), (680, 4103), (746, 3740), (748, 3730), (935, 2984), (1492, 1870), (1496, 1865)]