71981000

素因数分解:

$2^3\times 5^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1$

素因数の和:161

約数の個数: 192

約数和(自身を含む): 212874480

約数和(自身を除く): 140893480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 91, 98, 100, 104, 113, 125, 130, 140, 175, 182, 196, 200, 226, 245, 250, 260, 280, 325, 350, 364, 392, 452, 455, 490, 500, 520, 565, 637, 650, 700, 728, 791, 875, 904, 910, 980, 1000, 1130, 1225, 1274, 1300, 1400, 1469, 1582, 1625, 1750, 1820, 1960, 2260, 2275, 2450, 2548, 2600, 2825, 2938, 3164, 3185, 3250, 3500, 3640, 3955, 4520, 4550, 4900, 5096, 5537, 5650, 5876, 6125, 6328, 6370, 6500, 7000, 7345, 7910, 9100, 9800, 10283, 11074, 11300, 11375, 11752, 12250, 12740, 13000, 14125, 14690, 15820, 15925, 18200, 19775, 20566, 22148, 22600, 22750, 24500, 25480, 27685, 28250, 29380, 31640, 31850, 36725, 39550, 41132, 44296, 45500, 49000, 51415, 55370, 56500, 58760, 63700, 71981, 73450, 79100, 79625, 82264, 91000, 98875, 102830, 110740, 113000, 127400, 138425, 143962, 146900, 158200, 159250, 183625, 197750, 205660, 221480, 257075, 276850, 287924, 293800, 318500, 359905, 367250, 395500, 411320, 514150, 553700, 575848, 637000, 692125, 719810, 734500, 791000, 1028300, 1107400, 1285375, 1384250, 1439620, 1469000, 1799525, 2056600, 2570750, 2768500, 2879240, 3599050, 5141500, 5537000, 7198100, 8997625, 10283000, 14396200, 17995250, 35990500, 71981000]

約数ペア:

[(1, 71981000), (2, 35990500), (4, 17995250), (5, 14396200), (7, 10283000), (8, 8997625), (10, 7198100), (13, 5537000), (14, 5141500), (20, 3599050), (25, 2879240), (26, 2768500), (28, 2570750), (35, 2056600), (40, 1799525), (49, 1469000), (50, 1439620), (52, 1384250), (56, 1285375), (65, 1107400), (70, 1028300), (91, 791000), (98, 734500), (100, 719810), (104, 692125), (113, 637000), (125, 575848), (130, 553700), (140, 514150), (175, 411320), (182, 395500), (196, 367250), (200, 359905), (226, 318500), (245, 293800), (250, 287924), (260, 276850), (280, 257075), (325, 221480), (350, 205660), (364, 197750), (392, 183625), (452, 159250), (455, 158200), (490, 146900), (500, 143962), (520, 138425), (565, 127400), (637, 113000), (650, 110740), (700, 102830), (728, 98875), (791, 91000), (875, 82264), (904, 79625), (910, 79100), (980, 73450), (1000, 71981), (1130, 63700), (1225, 58760), (1274, 56500), (1300, 55370), (1400, 51415), (1469, 49000), (1582, 45500), (1625, 44296), (1750, 41132), (1820, 39550), (1960, 36725), (2260, 31850), (2275, 31640), (2450, 29380), (2548, 28250), (2600, 27685), (2825, 25480), (2938, 24500), (3164, 22750), (3185, 22600), (3250, 22148), (3500, 20566), (3640, 19775), (3955, 18200), (4520, 15925), (4550, 15820), (4900, 14690), (5096, 14125), (5537, 13000), (5650, 12740), (5876, 12250), (6125, 11752), (6328, 11375), (6370, 11300), (6500, 11074), (7000, 10283), (7345, 9800), (7910, 9100)]