80282800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15439}}^1$

素因数の和:15470

約数の個数: 60

約数和(自身を含む): 207729760

約数和(自身を除く): 127446960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 15439, 30878, 61756, 77195, 123512, 154390, 200707, 247024, 308780, 385975, 401414, 617560, 771950, 802828, 1003535, 1235120, 1543900, 1605656, 2007070, 3087800, 3211312, 4014140, 5017675, 6175600, 8028280, 10035350, 16056560, 20070700, 40141400, 80282800]

約数ペア:

[(1, 80282800), (2, 40141400), (4, 20070700), (5, 16056560), (8, 10035350), (10, 8028280), (13, 6175600), (16, 5017675), (20, 4014140), (25, 3211312), (26, 3087800), (40, 2007070), (50, 1605656), (52, 1543900), (65, 1235120), (80, 1003535), (100, 802828), (104, 771950), (130, 617560), (200, 401414), (208, 385975), (260, 308780), (325, 247024), (400, 200707), (520, 154390), (650, 123512), (1040, 77195), (1300, 61756), (2600, 30878), (5200, 15439)]