1321947120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{661}}^1$

素因数の和:1331

約数の個数: 160

約数和(自身を含む): 4426841664

約数和(自身を除く): 3104894544

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 641, 661, 780, 1040, 1282, 1322, 1560, 1923, 1983, 2564, 2644, 3120, 3205, 3305, 3846, 3966, 5128, 5288, 6410, 6610, 7692, 7932, 8333, 8593, 9615, 9915, 10256, 10576, 12820, 13220, 15384, 15864, 16666, 17186, 19230, 19830, 24999, 25640, 25779, 26440, 30768, 31728, 33332, 34372, 38460, 39660, 41665, 42965, 49998, 51280, 51558, 52880, 66664, 68744, 76920, 79320, 83330, 85930, 99996, 103116, 124995, 128895, 133328, 137488, 153840, 158640, 166660, 171860, 199992, 206232, 249990, 257790, 333320, 343720, 399984, 412464, 423701, 499980, 515580, 666640, 687440, 847402, 999960, 1031160, 1271103, 1694804, 1999920, 2062320, 2118505, 2542206, 3389608, 4237010, 5084412, 5508113, 6355515, 6779216, 8474020, 10168824, 11016226, 12711030, 16524339, 16948040, 20337648, 22032452, 25422060, 27540565, 33048678, 33896080, 44064904, 50844120, 55081130, 66097356, 82621695, 88129808, 101688240, 110162260, 132194712, 165243390, 220324520, 264389424, 330486780, 440649040, 660973560, 1321947120]

約数ペア:

[(1, 1321947120), (2, 660973560), (3, 440649040), (4, 330486780), (5, 264389424), (6, 220324520), (8, 165243390), (10, 132194712), (12, 110162260), (13, 101688240), (15, 88129808), (16, 82621695), (20, 66097356), (24, 55081130), (26, 50844120), (30, 44064904), (39, 33896080), (40, 33048678), (48, 27540565), (52, 25422060), (60, 22032452), (65, 20337648), (78, 16948040), (80, 16524339), (104, 12711030), (120, 11016226), (130, 10168824), (156, 8474020), (195, 6779216), (208, 6355515), (240, 5508113), (260, 5084412), (312, 4237010), (390, 3389608), (520, 2542206), (624, 2118505), (641, 2062320), (661, 1999920), (780, 1694804), (1040, 1271103), (1282, 1031160), (1322, 999960), (1560, 847402), (1923, 687440), (1983, 666640), (2564, 515580), (2644, 499980), (3120, 423701), (3205, 412464), (3305, 399984), (3846, 343720), (3966, 333320), (5128, 257790), (5288, 249990), (6410, 206232), (6610, 199992), (7692, 171860), (7932, 166660), (8333, 158640), (8593, 153840), (9615, 137488), (9915, 133328), (10256, 128895), (10576, 124995), (12820, 103116), (13220, 99996), (15384, 85930), (15864, 83330), (16666, 79320), (17186, 76920), (19230, 68744), (19830, 66664), (24999, 52880), (25640, 51558), (25779, 51280), (26440, 49998), (30768, 42965), (31728, 41665), (33332, 39660), (34372, 38460)]