212312800

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1223}}^1$

素因数の和:1281

約数の個数: 144

約数和(自身を含む): 611960832

約数和(自身を除く): 399648032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 62, 70, 80, 100, 112, 124, 140, 155, 160, 175, 200, 217, 224, 248, 280, 310, 350, 400, 434, 496, 560, 620, 700, 775, 800, 868, 992, 1085, 1120, 1223, 1240, 1400, 1550, 1736, 2170, 2446, 2480, 2800, 3100, 3472, 4340, 4892, 4960, 5425, 5600, 6115, 6200, 6944, 8561, 8680, 9784, 10850, 12230, 12400, 17122, 17360, 19568, 21700, 24460, 24800, 30575, 34244, 34720, 37913, 39136, 42805, 43400, 48920, 61150, 68488, 75826, 85610, 86800, 97840, 122300, 136976, 151652, 171220, 173600, 189565, 195680, 214025, 244600, 265391, 273952, 303304, 342440, 379130, 428050, 489200, 530782, 606608, 684880, 758260, 856100, 947825, 978400, 1061564, 1213216, 1326955, 1369760, 1516520, 1712200, 1895650, 2123128, 2653910, 3033040, 3424400, 3791300, 4246256, 5307820, 6066080, 6634775, 6848800, 7582600, 8492512, 10615640, 13269550, 15165200, 21231280, 26539100, 30330400, 42462560, 53078200, 106156400, 212312800]

約数ペア:

[(1, 212312800), (2, 106156400), (4, 53078200), (5, 42462560), (7, 30330400), (8, 26539100), (10, 21231280), (14, 15165200), (16, 13269550), (20, 10615640), (25, 8492512), (28, 7582600), (31, 6848800), (32, 6634775), (35, 6066080), (40, 5307820), (50, 4246256), (56, 3791300), (62, 3424400), (70, 3033040), (80, 2653910), (100, 2123128), (112, 1895650), (124, 1712200), (140, 1516520), (155, 1369760), (160, 1326955), (175, 1213216), (200, 1061564), (217, 978400), (224, 947825), (248, 856100), (280, 758260), (310, 684880), (350, 606608), (400, 530782), (434, 489200), (496, 428050), (560, 379130), (620, 342440), (700, 303304), (775, 273952), (800, 265391), (868, 244600), (992, 214025), (1085, 195680), (1120, 189565), (1223, 173600), (1240, 171220), (1400, 151652), (1550, 136976), (1736, 122300), (2170, 97840), (2446, 86800), (2480, 85610), (2800, 75826), (3100, 68488), (3472, 61150), (4340, 48920), (4892, 43400), (4960, 42805), (5425, 39136), (5600, 37913), (6115, 34720), (6200, 34244), (6944, 30575), (8561, 24800), (8680, 24460), (9784, 21700), (10850, 19568), (12230, 17360), (12400, 17122)]