1721382780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2206901}}^1$

素因数の和:2206926

約数の個数: 48

約数和(自身を含む): 5190633504

約数和(自身を除く): 3469250724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 2206901, 4413802, 6620703, 8827604, 11034505, 13241406, 22069010, 26482812, 28689713, 33103515, 44138020, 57379426, 66207030, 86069139, 114758852, 132414060, 143448565, 172138278, 286897130, 344276556, 430345695, 573794260, 860691390, 1721382780]

約数ペア:

[(1, 1721382780), (2, 860691390), (3, 573794260), (4, 430345695), (5, 344276556), (6, 286897130), (10, 172138278), (12, 143448565), (13, 132414060), (15, 114758852), (20, 86069139), (26, 66207030), (30, 57379426), (39, 44138020), (52, 33103515), (60, 28689713), (65, 26482812), (78, 22069010), (130, 13241406), (156, 11034505), (195, 8827604), (260, 6620703), (390, 4413802), (780, 2206901)]