161649040

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:214

約数の個数: 160

約数和(自身を含む): 451756800

約数和(自身を除く): 290107760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 49, 56, 70, 80, 86, 98, 112, 137, 140, 172, 196, 215, 245, 274, 280, 301, 343, 344, 392, 430, 490, 548, 560, 602, 685, 686, 688, 784, 860, 959, 980, 1096, 1204, 1370, 1372, 1505, 1715, 1720, 1918, 1960, 2107, 2192, 2408, 2740, 2744, 3010, 3430, 3440, 3836, 3920, 4214, 4795, 4816, 5480, 5488, 5891, 6020, 6713, 6860, 7672, 8428, 9590, 10535, 10960, 11782, 12040, 13426, 13720, 14749, 15344, 16856, 19180, 21070, 23564, 24080, 26852, 27440, 29455, 29498, 33565, 33712, 38360, 41237, 42140, 46991, 47128, 53704, 58910, 58996, 67130, 73745, 76720, 82474, 84280, 93982, 94256, 107408, 117820, 117992, 134260, 147490, 164948, 168560, 187964, 206185, 234955, 235640, 235984, 268520, 288659, 294980, 329896, 375928, 412370, 469910, 471280, 537040, 577318, 589960, 659792, 751856, 824740, 939820, 1154636, 1179920, 1443295, 1649480, 1879640, 2020613, 2309272, 2886590, 3298960, 3759280, 4041226, 4618544, 5773180, 8082452, 10103065, 11546360, 16164904, 20206130, 23092720, 32329808, 40412260, 80824520, 161649040]

約数ペア:

[(1, 161649040), (2, 80824520), (4, 40412260), (5, 32329808), (7, 23092720), (8, 20206130), (10, 16164904), (14, 11546360), (16, 10103065), (20, 8082452), (28, 5773180), (35, 4618544), (40, 4041226), (43, 3759280), (49, 3298960), (56, 2886590), (70, 2309272), (80, 2020613), (86, 1879640), (98, 1649480), (112, 1443295), (137, 1179920), (140, 1154636), (172, 939820), (196, 824740), (215, 751856), (245, 659792), (274, 589960), (280, 577318), (301, 537040), (343, 471280), (344, 469910), (392, 412370), (430, 375928), (490, 329896), (548, 294980), (560, 288659), (602, 268520), (685, 235984), (686, 235640), (688, 234955), (784, 206185), (860, 187964), (959, 168560), (980, 164948), (1096, 147490), (1204, 134260), (1370, 117992), (1372, 117820), (1505, 107408), (1715, 94256), (1720, 93982), (1918, 84280), (1960, 82474), (2107, 76720), (2192, 73745), (2408, 67130), (2740, 58996), (2744, 58910), (3010, 53704), (3430, 47128), (3440, 46991), (3836, 42140), (3920, 41237), (4214, 38360), (4795, 33712), (4816, 33565), (5480, 29498), (5488, 29455), (5891, 27440), (6020, 26852), (6713, 24080), (6860, 23564), (7672, 21070), (8428, 19180), (9590, 16856), (10535, 15344), (10960, 14749), (11782, 13720), (12040, 13426)]