90021960

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:420

約数の個数: 192

約数和(自身を含む): 338083200

約数和(自身を除く): 248061240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 139, 140, 168, 180, 210, 252, 257, 278, 280, 315, 360, 417, 420, 504, 514, 556, 630, 695, 771, 834, 840, 973, 1028, 1112, 1251, 1260, 1285, 1390, 1542, 1668, 1799, 1946, 2056, 2085, 2313, 2502, 2520, 2570, 2780, 2919, 3084, 3336, 3598, 3855, 3892, 4170, 4626, 4865, 5004, 5140, 5397, 5560, 5838, 6168, 6255, 7196, 7710, 7784, 8340, 8757, 8995, 9252, 9730, 10008, 10280, 10794, 11565, 11676, 12510, 14392, 14595, 15420, 16191, 16680, 17514, 17990, 18504, 19460, 21588, 23130, 23352, 25020, 26985, 29190, 30840, 32382, 35028, 35723, 35980, 38920, 43176, 43785, 46260, 50040, 53970, 58380, 64764, 70056, 71446, 71960, 80955, 87570, 92520, 107169, 107940, 116760, 129528, 142892, 161910, 175140, 178615, 214338, 215880, 250061, 285784, 321507, 323820, 350280, 357230, 428676, 500122, 535845, 643014, 647640, 714460, 750183, 857352, 1000244, 1071690, 1250305, 1286028, 1428920, 1500366, 1607535, 2000488, 2143380, 2250549, 2500610, 2572056, 3000732, 3215070, 3750915, 4286760, 4501098, 5001220, 6001464, 6430140, 7501830, 9002196, 10002440, 11252745, 12860280, 15003660, 18004392, 22505490, 30007320, 45010980, 90021960]

約数ペア:

[(1, 90021960), (2, 45010980), (3, 30007320), (4, 22505490), (5, 18004392), (6, 15003660), (7, 12860280), (8, 11252745), (9, 10002440), (10, 9002196), (12, 7501830), (14, 6430140), (15, 6001464), (18, 5001220), (20, 4501098), (21, 4286760), (24, 3750915), (28, 3215070), (30, 3000732), (35, 2572056), (36, 2500610), (40, 2250549), (42, 2143380), (45, 2000488), (56, 1607535), (60, 1500366), (63, 1428920), (70, 1286028), (72, 1250305), (84, 1071690), (90, 1000244), (105, 857352), (120, 750183), (126, 714460), (139, 647640), (140, 643014), (168, 535845), (180, 500122), (210, 428676), (252, 357230), (257, 350280), (278, 323820), (280, 321507), (315, 285784), (360, 250061), (417, 215880), (420, 214338), (504, 178615), (514, 175140), (556, 161910), (630, 142892), (695, 129528), (771, 116760), (834, 107940), (840, 107169), (973, 92520), (1028, 87570), (1112, 80955), (1251, 71960), (1260, 71446), (1285, 70056), (1390, 64764), (1542, 58380), (1668, 53970), (1799, 50040), (1946, 46260), (2056, 43785), (2085, 43176), (2313, 38920), (2502, 35980), (2520, 35723), (2570, 35028), (2780, 32382), (2919, 30840), (3084, 29190), (3336, 26985), (3598, 25020), (3855, 23352), (3892, 23130), (4170, 21588), (4626, 19460), (4865, 18504), (5004, 17990), (5140, 17514), (5397, 16680), (5560, 16191), (5838, 15420), (6168, 14595), (6255, 14392), (7196, 12510), (7710, 11676), (7784, 11565), (8340, 10794), (8757, 10280), (8995, 10008), (9252, 9730)]