128635780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:498

約数の個数: 144

約数和(自身を含む): 353928960

約数和(自身を除く): 225293180

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 49, 52, 65, 70, 91, 92, 98, 115, 130, 140, 161, 182, 196, 230, 245, 260, 299, 322, 364, 439, 455, 460, 490, 598, 637, 644, 805, 878, 910, 980, 1127, 1196, 1274, 1495, 1610, 1756, 1820, 2093, 2195, 2254, 2548, 2990, 3073, 3185, 3220, 4186, 4390, 4508, 5635, 5707, 5980, 6146, 6370, 8372, 8780, 10097, 10465, 11270, 11414, 12292, 12740, 14651, 15365, 20194, 20930, 21511, 22540, 22828, 28535, 29302, 30730, 39949, 40388, 41860, 43022, 50485, 57070, 58604, 61460, 70679, 73255, 79898, 86044, 100970, 107555, 114140, 131261, 141358, 146510, 159796, 199745, 201940, 215110, 262522, 279643, 282716, 293020, 353395, 399490, 430220, 494753, 525044, 559286, 656305, 706790, 798980, 918827, 989506, 1118572, 1312610, 1398215, 1413580, 1837654, 1979012, 2473765, 2625220, 2796430, 3675308, 4594135, 4947530, 5592860, 6431789, 9188270, 9895060, 12863578, 18376540, 25727156, 32158945, 64317890, 128635780]

約数ペア:

[(1, 128635780), (2, 64317890), (4, 32158945), (5, 25727156), (7, 18376540), (10, 12863578), (13, 9895060), (14, 9188270), (20, 6431789), (23, 5592860), (26, 4947530), (28, 4594135), (35, 3675308), (46, 2796430), (49, 2625220), (52, 2473765), (65, 1979012), (70, 1837654), (91, 1413580), (92, 1398215), (98, 1312610), (115, 1118572), (130, 989506), (140, 918827), (161, 798980), (182, 706790), (196, 656305), (230, 559286), (245, 525044), (260, 494753), (299, 430220), (322, 399490), (364, 353395), (439, 293020), (455, 282716), (460, 279643), (490, 262522), (598, 215110), (637, 201940), (644, 199745), (805, 159796), (878, 146510), (910, 141358), (980, 131261), (1127, 114140), (1196, 107555), (1274, 100970), (1495, 86044), (1610, 79898), (1756, 73255), (1820, 70679), (2093, 61460), (2195, 58604), (2254, 57070), (2548, 50485), (2990, 43022), (3073, 41860), (3185, 40388), (3220, 39949), (4186, 30730), (4390, 29302), (4508, 28535), (5635, 22828), (5707, 22540), (5980, 21511), (6146, 20930), (6370, 20194), (8372, 15365), (8780, 14651), (10097, 12740), (10465, 12292), (11270, 11414)]