1661900520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{6991}}^1$

素因数の和:7295

約数の個数: 128

約数和(自身を含む): 5718896640

約数和(自身を除く): 4056996120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 283, 420, 566, 840, 849, 1132, 1415, 1698, 1981, 2264, 2830, 3396, 3962, 4245, 5660, 5943, 6792, 6991, 7924, 8490, 9905, 11320, 11886, 13982, 15848, 16980, 19810, 20973, 23772, 27964, 29715, 33960, 34955, 39620, 41946, 47544, 48937, 55928, 59430, 69910, 79240, 83892, 97874, 104865, 118860, 139820, 146811, 167784, 195748, 209730, 237720, 244685, 279640, 293622, 391496, 419460, 489370, 587244, 734055, 838920, 978740, 1174488, 1468110, 1957480, 1978453, 2936220, 3956906, 5872440, 5935359, 7913812, 9892265, 11870718, 13849171, 15827624, 19784530, 23741436, 27698342, 29676795, 39569060, 41547513, 47482872, 55396684, 59353590, 69245855, 79138120, 83095026, 110793368, 118707180, 138491710, 166190052, 207737565, 237414360, 276983420, 332380104, 415475130, 553966840, 830950260, 1661900520]

約数ペア:

[(1, 1661900520), (2, 830950260), (3, 553966840), (4, 415475130), (5, 332380104), (6, 276983420), (7, 237414360), (8, 207737565), (10, 166190052), (12, 138491710), (14, 118707180), (15, 110793368), (20, 83095026), (21, 79138120), (24, 69245855), (28, 59353590), (30, 55396684), (35, 47482872), (40, 41547513), (42, 39569060), (56, 29676795), (60, 27698342), (70, 23741436), (84, 19784530), (105, 15827624), (120, 13849171), (140, 11870718), (168, 9892265), (210, 7913812), (280, 5935359), (283, 5872440), (420, 3956906), (566, 2936220), (840, 1978453), (849, 1957480), (1132, 1468110), (1415, 1174488), (1698, 978740), (1981, 838920), (2264, 734055), (2830, 587244), (3396, 489370), (3962, 419460), (4245, 391496), (5660, 293622), (5943, 279640), (6792, 244685), (6991, 237720), (7924, 209730), (8490, 195748), (9905, 167784), (11320, 146811), (11886, 139820), (13982, 118860), (15848, 104865), (16980, 97874), (19810, 83892), (20973, 79240), (23772, 69910), (27964, 59430), (29715, 55928), (33960, 48937), (34955, 47544), (39620, 41946)]