30879800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 87784560

約数和(自身を除く): 56904760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 25, 28, 35, 40, 46, 49, 50, 56, 70, 92, 98, 100, 115, 137, 140, 161, 175, 184, 196, 200, 230, 245, 274, 280, 322, 350, 392, 460, 490, 548, 575, 644, 685, 700, 805, 920, 959, 980, 1096, 1127, 1150, 1225, 1288, 1370, 1400, 1610, 1918, 1960, 2254, 2300, 2450, 2740, 3151, 3220, 3425, 3836, 4025, 4508, 4600, 4795, 4900, 5480, 5635, 6302, 6440, 6713, 6850, 7672, 8050, 9016, 9590, 9800, 11270, 12604, 13426, 13700, 15755, 16100, 19180, 22057, 22540, 23975, 25208, 26852, 27400, 28175, 31510, 32200, 33565, 38360, 44114, 45080, 47950, 53704, 56350, 63020, 67130, 78775, 88228, 95900, 110285, 112700, 126040, 134260, 154399, 157550, 167825, 176456, 191800, 220570, 225400, 268520, 308798, 315100, 335650, 441140, 551425, 617596, 630200, 671300, 771995, 882280, 1102850, 1235192, 1342600, 1543990, 2205700, 3087980, 3859975, 4411400, 6175960, 7719950, 15439900, 30879800]

約数ペア:

[(1, 30879800), (2, 15439900), (4, 7719950), (5, 6175960), (7, 4411400), (8, 3859975), (10, 3087980), (14, 2205700), (20, 1543990), (23, 1342600), (25, 1235192), (28, 1102850), (35, 882280), (40, 771995), (46, 671300), (49, 630200), (50, 617596), (56, 551425), (70, 441140), (92, 335650), (98, 315100), (100, 308798), (115, 268520), (137, 225400), (140, 220570), (161, 191800), (175, 176456), (184, 167825), (196, 157550), (200, 154399), (230, 134260), (245, 126040), (274, 112700), (280, 110285), (322, 95900), (350, 88228), (392, 78775), (460, 67130), (490, 63020), (548, 56350), (575, 53704), (644, 47950), (685, 45080), (700, 44114), (805, 38360), (920, 33565), (959, 32200), (980, 31510), (1096, 28175), (1127, 27400), (1150, 26852), (1225, 25208), (1288, 23975), (1370, 22540), (1400, 22057), (1610, 19180), (1918, 16100), (1960, 15755), (2254, 13700), (2300, 13426), (2450, 12604), (2740, 11270), (3151, 9800), (3220, 9590), (3425, 9016), (3836, 8050), (4025, 7672), (4508, 6850), (4600, 6713), (4795, 6440), (4900, 6302), (5480, 5635)]