388383840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20747}}^1$

素因数の和:20781

約数の個数: 144

約数和(自身を含む): 1427379408

約数和(自身を除く): 1038995568

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4680, 6240, 9360, 18720, 20747, 41494, 62241, 82988, 103735, 124482, 165976, 186723, 207470, 248964, 269711, 311205, 331952, 373446, 414940, 497928, 539422, 622410, 663904, 746892, 809133, 829880, 933615, 995856, 1078844, 1244820, 1348555, 1493784, 1618266, 1659760, 1867230, 1991712, 2157688, 2427399, 2489640, 2697110, 2987568, 3236532, 3319520, 3734460, 4045665, 4315376, 4854798, 4979280, 5394220, 5975136, 6473064, 7468920, 8091330, 8630752, 9709596, 9958560, 10788440, 12136995, 12946128, 14937840, 16182660, 19419192, 21576880, 24273990, 25892256, 29875680, 32365320, 38838384, 43153760, 48547980, 64730640, 77676768, 97095960, 129461280, 194191920, 388383840]

約数ペア:

[(1, 388383840), (2, 194191920), (3, 129461280), (4, 97095960), (5, 77676768), (6, 64730640), (8, 48547980), (9, 43153760), (10, 38838384), (12, 32365320), (13, 29875680), (15, 25892256), (16, 24273990), (18, 21576880), (20, 19419192), (24, 16182660), (26, 14937840), (30, 12946128), (32, 12136995), (36, 10788440), (39, 9958560), (40, 9709596), (45, 8630752), (48, 8091330), (52, 7468920), (60, 6473064), (65, 5975136), (72, 5394220), (78, 4979280), (80, 4854798), (90, 4315376), (96, 4045665), (104, 3734460), (117, 3319520), (120, 3236532), (130, 2987568), (144, 2697110), (156, 2489640), (160, 2427399), (180, 2157688), (195, 1991712), (208, 1867230), (234, 1659760), (240, 1618266), (260, 1493784), (288, 1348555), (312, 1244820), (360, 1078844), (390, 995856), (416, 933615), (468, 829880), (480, 809133), (520, 746892), (585, 663904), (624, 622410), (720, 539422), (780, 497928), (936, 414940), (1040, 373446), (1170, 331952), (1248, 311205), (1440, 269711), (1560, 248964), (1872, 207470), (2080, 186723), (2340, 165976), (3120, 124482), (3744, 103735), (4680, 82988), (6240, 62241), (9360, 41494), (18720, 20747)]