16920560040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{479}}^1\times {\mathrm{683}}^1$

素因数の和:1607

約数の個数: 128

約数和(自身を含む): 51060326400

約数和(自身を除く): 34139766360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 431, 479, 683, 862, 958, 1293, 1366, 1437, 1724, 1916, 2049, 2155, 2395, 2586, 2732, 2874, 3415, 3448, 3832, 4098, 4310, 4790, 5172, 5464, 5748, 6465, 6830, 7185, 8196, 8620, 9580, 10245, 10344, 11496, 12930, 13660, 14370, 16392, 17240, 19160, 20490, 25860, 27320, 28740, 40980, 51720, 57480, 81960, 206449, 294373, 327157, 412898, 588746, 619347, 654314, 825796, 883119, 981471, 1032245, 1177492, 1238694, 1308628, 1471865, 1635785, 1651592, 1766238, 1962942, 2064490, 2354984, 2477388, 2617256, 2943730, 3096735, 3271570, 3532476, 3925884, 4128980, 4415595, 4907355, 4954776, 5887460, 6193470, 6543140, 7064952, 7851768, 8257960, 8831190, 9814710, 11774920, 12386940, 13086280, 17662380, 19629420, 24773880, 35324760, 39258840, 141004667, 282009334, 423014001, 564018668, 705023335, 846028002, 1128037336, 1410046670, 1692056004, 2115070005, 2820093340, 3384112008, 4230140010, 5640186680, 8460280020, 16920560040]

約数ペア:

[(1, 16920560040), (2, 8460280020), (3, 5640186680), (4, 4230140010), (5, 3384112008), (6, 2820093340), (8, 2115070005), (10, 1692056004), (12, 1410046670), (15, 1128037336), (20, 846028002), (24, 705023335), (30, 564018668), (40, 423014001), (60, 282009334), (120, 141004667), (431, 39258840), (479, 35324760), (683, 24773880), (862, 19629420), (958, 17662380), (1293, 13086280), (1366, 12386940), (1437, 11774920), (1724, 9814710), (1916, 8831190), (2049, 8257960), (2155, 7851768), (2395, 7064952), (2586, 6543140), (2732, 6193470), (2874, 5887460), (3415, 4954776), (3448, 4907355), (3832, 4415595), (4098, 4128980), (4310, 3925884), (4790, 3532476), (5172, 3271570), (5464, 3096735), (5748, 2943730), (6465, 2617256), (6830, 2477388), (7185, 2354984), (8196, 2064490), (8620, 1962942), (9580, 1766238), (10245, 1651592), (10344, 1635785), (11496, 1471865), (12930, 1308628), (13660, 1238694), (14370, 1177492), (16392, 1032245), (17240, 981471), (19160, 883119), (20490, 825796), (25860, 654314), (27320, 619347), (28740, 588746), (40980, 412898), (51720, 327157), (57480, 294373), (81960, 206449)]