291128880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{173291}}^1$

素因数の和:173314

約数の個数: 80

約数和(自身を含む): 1031433984

約数和(自身を除く): 740305104

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, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 173291, 346582, 519873, 693164, 866455, 1039746, 1213037, 1386328, 1732910, 2079492, 2426074, 2599365, 2772656, 3465820, 3639111, 4158984, 4852148, 5198730, 6065185, 6931640, 7278222, 8317968, 9704296, 10397460, 12130370, 13863280, 14556444, 18195555, 19408592, 20794920, 24260740, 29112888, 36391110, 41589840, 48521480, 58225776, 72782220, 97042960, 145564440, 291128880]

約数ペア:

[(1, 291128880), (2, 145564440), (3, 97042960), (4, 72782220), (5, 58225776), (6, 48521480), (7, 41589840), (8, 36391110), (10, 29112888), (12, 24260740), (14, 20794920), (15, 19408592), (16, 18195555), (20, 14556444), (21, 13863280), (24, 12130370), (28, 10397460), (30, 9704296), (35, 8317968), (40, 7278222), (42, 6931640), (48, 6065185), (56, 5198730), (60, 4852148), (70, 4158984), (80, 3639111), (84, 3465820), (105, 2772656), (112, 2599365), (120, 2426074), (140, 2079492), (168, 1732910), (210, 1386328), (240, 1213037), (280, 1039746), (336, 866455), (420, 693164), (560, 519873), (840, 346582), (1680, 173291)]