1781421240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{5651}}^1$

素因数の和:5773

約数の個数: 128

約数和(自身を含む): 5566993920

約数和(自身を除く): 3785572680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 60, 71, 74, 111, 120, 142, 148, 185, 213, 222, 284, 296, 355, 370, 426, 444, 555, 568, 710, 740, 852, 888, 1065, 1110, 1420, 1480, 1704, 2130, 2220, 2627, 2840, 4260, 4440, 5254, 5651, 7881, 8520, 10508, 11302, 13135, 15762, 16953, 21016, 22604, 26270, 28255, 31524, 33906, 39405, 45208, 52540, 56510, 63048, 67812, 78810, 84765, 105080, 113020, 135624, 157620, 169530, 209087, 226040, 315240, 339060, 401221, 418174, 627261, 678120, 802442, 836348, 1045435, 1203663, 1254522, 1604884, 1672696, 2006105, 2090870, 2407326, 2509044, 3136305, 3209768, 4012210, 4181740, 4814652, 5018088, 6018315, 6272610, 8024420, 8363480, 9629304, 12036630, 12545220, 14845177, 16048840, 24073260, 25090440, 29690354, 44535531, 48146520, 59380708, 74225885, 89071062, 118761416, 148451770, 178142124, 222677655, 296903540, 356284248, 445355310, 593807080, 890710620, 1781421240]

約数ペア:

[(1, 1781421240), (2, 890710620), (3, 593807080), (4, 445355310), (5, 356284248), (6, 296903540), (8, 222677655), (10, 178142124), (12, 148451770), (15, 118761416), (20, 89071062), (24, 74225885), (30, 59380708), (37, 48146520), (40, 44535531), (60, 29690354), (71, 25090440), (74, 24073260), (111, 16048840), (120, 14845177), (142, 12545220), (148, 12036630), (185, 9629304), (213, 8363480), (222, 8024420), (284, 6272610), (296, 6018315), (355, 5018088), (370, 4814652), (426, 4181740), (444, 4012210), (555, 3209768), (568, 3136305), (710, 2509044), (740, 2407326), (852, 2090870), (888, 2006105), (1065, 1672696), (1110, 1604884), (1420, 1254522), (1480, 1203663), (1704, 1045435), (2130, 836348), (2220, 802442), (2627, 678120), (2840, 627261), (4260, 418174), (4440, 401221), (5254, 339060), (5651, 315240), (7881, 226040), (8520, 209087), (10508, 169530), (11302, 157620), (13135, 135624), (15762, 113020), (16953, 105080), (21016, 84765), (22604, 78810), (26270, 67812), (28255, 63048), (31524, 56510), (33906, 52540), (39405, 45208)]