205651220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{1783}}^1$

素因数の和:1944

約数の個数: 48

約数和(自身を含む): 443573760

約数和(自身を除く): 237922540

約数列:

[1, 2, 4, 5, 10, 20, 73, 79, 146, 158, 292, 316, 365, 395, 730, 790, 1460, 1580, 1783, 3566, 5767, 7132, 8915, 11534, 17830, 23068, 28835, 35660, 57670, 115340, 130159, 140857, 260318, 281714, 520636, 563428, 650795, 704285, 1301590, 1408570, 2603180, 2817140, 10282561, 20565122, 41130244, 51412805, 102825610, 205651220]

約数ペア:

[(1, 205651220), (2, 102825610), (4, 51412805), (5, 41130244), (10, 20565122), (20, 10282561), (73, 2817140), (79, 2603180), (146, 1408570), (158, 1301590), (292, 704285), (316, 650795), (365, 563428), (395, 520636), (730, 281714), (790, 260318), (1460, 140857), (1580, 130159), (1783, 115340), (3566, 57670), (5767, 35660), (7132, 28835), (8915, 23068), (11534, 17830)]