420102480

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:426

約数の個数: 240

約数和(自身を含む): 1531776960

約数和(自身を除く): 1111674480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 139, 140, 147, 168, 196, 210, 240, 245, 257, 278, 280, 294, 336, 392, 417, 420, 490, 514, 556, 560, 588, 695, 735, 771, 784, 834, 840, 973, 980, 1028, 1112, 1176, 1285, 1390, 1470, 1542, 1668, 1680, 1799, 1946, 1960, 2056, 2085, 2224, 2352, 2570, 2780, 2919, 2940, 3084, 3336, 3598, 3855, 3892, 3920, 4112, 4170, 4865, 5140, 5397, 5560, 5838, 5880, 6168, 6672, 6811, 7196, 7710, 7784, 8340, 8995, 9730, 10280, 10794, 11120, 11676, 11760, 12336, 12593, 13622, 14392, 14595, 15420, 15568, 16680, 17990, 19460, 20433, 20560, 21588, 23352, 25186, 26985, 27244, 28784, 29190, 30840, 33360, 34055, 35723, 35980, 37779, 38920, 40866, 43176, 46704, 50372, 53970, 54488, 58380, 61680, 62965, 68110, 71446, 71960, 75558, 77840, 81732, 86352, 100744, 102165, 107169, 107940, 108976, 116760, 125930, 136220, 142892, 143920, 151116, 163464, 178615, 188895, 201488, 204330, 214338, 215880, 233520, 250061, 251860, 272440, 285784, 302232, 326928, 357230, 377790, 408660, 428676, 431760, 500122, 503720, 535845, 544880, 571568, 604464, 714460, 750183, 755580, 817320, 857352, 1000244, 1007440, 1071690, 1250305, 1428920, 1500366, 1511160, 1634640, 1714704, 1750427, 2000488, 2143380, 2500610, 2857840, 3000732, 3022320, 3500854, 3750915, 4000976, 4286760, 5001220, 5251281, 6001464, 7001708, 7501830, 8573520, 8752135, 10002440, 10502562, 12002928, 14003416, 15003660, 17504270, 20004880, 21005124, 26256405, 28006832, 30007320, 35008540, 42010248, 52512810, 60014640, 70017080, 84020496, 105025620, 140034160, 210051240, 420102480]

約数ペア:

[(1, 420102480), (2, 210051240), (3, 140034160), (4, 105025620), (5, 84020496), (6, 70017080), (7, 60014640), (8, 52512810), (10, 42010248), (12, 35008540), (14, 30007320), (15, 28006832), (16, 26256405), (20, 21005124), (21, 20004880), (24, 17504270), (28, 15003660), (30, 14003416), (35, 12002928), (40, 10502562), (42, 10002440), (48, 8752135), (49, 8573520), (56, 7501830), (60, 7001708), (70, 6001464), (80, 5251281), (84, 5001220), (98, 4286760), (105, 4000976), (112, 3750915), (120, 3500854), (139, 3022320), (140, 3000732), (147, 2857840), (168, 2500610), (196, 2143380), (210, 2000488), (240, 1750427), (245, 1714704), (257, 1634640), (278, 1511160), (280, 1500366), (294, 1428920), (336, 1250305), (392, 1071690), (417, 1007440), (420, 1000244), (490, 857352), (514, 817320), (556, 755580), (560, 750183), (588, 714460), (695, 604464), (735, 571568), (771, 544880), (784, 535845), (834, 503720), (840, 500122), (973, 431760), (980, 428676), (1028, 408660), (1112, 377790), (1176, 357230), (1285, 326928), (1390, 302232), (1470, 285784), (1542, 272440), (1668, 251860), (1680, 250061), (1799, 233520), (1946, 215880), (1960, 214338), (2056, 204330), (2085, 201488), (2224, 188895), (2352, 178615), (2570, 163464), (2780, 151116), (2919, 143920), (2940, 142892), (3084, 136220), (3336, 125930), (3598, 116760), (3855, 108976), (3892, 107940), (3920, 107169), (4112, 102165), (4170, 100744), (4865, 86352), (5140, 81732), (5397, 77840), (5560, 75558), (5838, 71960), (5880, 71446), (6168, 68110), (6672, 62965), (6811, 61680), (7196, 58380), (7710, 54488), (7784, 53970), (8340, 50372), (8995, 46704), (9730, 43176), (10280, 40866), (10794, 38920), (11120, 37779), (11676, 35980), (11760, 35723), (12336, 34055), (12593, 33360), (13622, 30840), (14392, 29190), (14595, 28784), (15420, 27244), (15568, 26985), (16680, 25186), (17990, 23352), (19460, 21588), (20433, 20560)]