71819440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:251

約数の個数: 160

約数和(自身を含む): 212129280

約数和(自身を除く): 140309840

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 89, 110, 112, 131, 140, 154, 176, 178, 220, 262, 280, 308, 356, 385, 440, 445, 524, 560, 616, 623, 655, 712, 770, 880, 890, 917, 979, 1048, 1232, 1246, 1310, 1424, 1441, 1540, 1780, 1834, 1958, 2096, 2492, 2620, 2882, 3080, 3115, 3560, 3668, 3916, 4585, 4895, 4984, 5240, 5764, 6160, 6230, 6853, 7120, 7205, 7336, 7832, 9170, 9790, 9968, 10087, 10480, 11528, 11659, 12460, 13706, 14410, 14672, 15664, 18340, 19580, 20174, 23056, 23318, 24920, 27412, 28820, 34265, 36680, 39160, 40348, 46636, 49840, 50435, 54824, 57640, 58295, 68530, 73360, 78320, 80696, 81613, 93272, 100870, 109648, 115280, 116590, 128249, 137060, 161392, 163226, 186544, 201740, 233180, 256498, 274120, 326452, 403480, 408065, 466360, 512996, 548240, 641245, 652904, 806960, 816130, 897743, 932720, 1025992, 1282490, 1305808, 1632260, 1795486, 2051984, 2564980, 3264520, 3590972, 4488715, 5129960, 6529040, 7181944, 8977430, 10259920, 14363888, 17954860, 35909720, 71819440]

約数ペア:

[(1, 71819440), (2, 35909720), (4, 17954860), (5, 14363888), (7, 10259920), (8, 8977430), (10, 7181944), (11, 6529040), (14, 5129960), (16, 4488715), (20, 3590972), (22, 3264520), (28, 2564980), (35, 2051984), (40, 1795486), (44, 1632260), (55, 1305808), (56, 1282490), (70, 1025992), (77, 932720), (80, 897743), (88, 816130), (89, 806960), (110, 652904), (112, 641245), (131, 548240), (140, 512996), (154, 466360), (176, 408065), (178, 403480), (220, 326452), (262, 274120), (280, 256498), (308, 233180), (356, 201740), (385, 186544), (440, 163226), (445, 161392), (524, 137060), (560, 128249), (616, 116590), (623, 115280), (655, 109648), (712, 100870), (770, 93272), (880, 81613), (890, 80696), (917, 78320), (979, 73360), (1048, 68530), (1232, 58295), (1246, 57640), (1310, 54824), (1424, 50435), (1441, 49840), (1540, 46636), (1780, 40348), (1834, 39160), (1958, 36680), (2096, 34265), (2492, 28820), (2620, 27412), (2882, 24920), (3080, 23318), (3115, 23056), (3560, 20174), (3668, 19580), (3916, 18340), (4585, 15664), (4895, 14672), (4984, 14410), (5240, 13706), (5764, 12460), (6160, 11659), (6230, 11528), (6853, 10480), (7120, 10087), (7205, 9968), (7336, 9790), (7832, 9170)]