1780230140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{402767}}^1$

素因数の和:402806

約数の個数: 48

約数和(自身を含む): 4262896512

約数和(自身を除く): 2482666372

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 402767, 805534, 1611068, 2013835, 4027670, 5235971, 6847039, 8055340, 10471942, 13694078, 20943884, 26179855, 27388156, 34235195, 52359710, 68470390, 89011507, 104719420, 136940780, 178023014, 356046028, 445057535, 890115070, 1780230140]

約数ペア:

[(1, 1780230140), (2, 890115070), (4, 445057535), (5, 356046028), (10, 178023014), (13, 136940780), (17, 104719420), (20, 89011507), (26, 68470390), (34, 52359710), (52, 34235195), (65, 27388156), (68, 26179855), (85, 20943884), (130, 13694078), (170, 10471942), (221, 8055340), (260, 6847039), (340, 5235971), (442, 4027670), (884, 2013835), (1105, 1611068), (2210, 805534), (4420, 402767)]