289392040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{409}}^1$

素因数の和:472

約数の個数: 144

約数和(自身を含む): 801357300

約数和(自身を除く): 511965260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 361, 380, 392, 409, 490, 532, 665, 722, 760, 818, 931, 980, 1064, 1330, 1444, 1636, 1805, 1862, 1960, 2045, 2527, 2660, 2863, 2888, 3272, 3610, 3724, 4090, 4655, 5054, 5320, 5726, 7220, 7448, 7771, 8180, 9310, 10108, 11452, 12635, 14315, 14440, 15542, 16360, 17689, 18620, 20041, 20216, 22904, 25270, 28630, 31084, 35378, 37240, 38855, 40082, 50540, 54397, 57260, 62168, 70756, 77710, 80164, 88445, 100205, 101080, 108794, 114520, 141512, 147649, 155420, 160328, 176890, 200410, 217588, 271985, 295298, 310840, 353780, 380779, 400820, 435176, 543970, 590596, 707560, 738245, 761558, 801640, 1033543, 1087940, 1181192, 1476490, 1523116, 1903895, 2067086, 2175880, 2952980, 3046232, 3807790, 4134172, 5167715, 5905960, 7234801, 7615580, 8268344, 10335430, 14469602, 15231160, 20670860, 28939204, 36174005, 41341720, 57878408, 72348010, 144696020, 289392040]

約数ペア:

[(1, 289392040), (2, 144696020), (4, 72348010), (5, 57878408), (7, 41341720), (8, 36174005), (10, 28939204), (14, 20670860), (19, 15231160), (20, 14469602), (28, 10335430), (35, 8268344), (38, 7615580), (40, 7234801), (49, 5905960), (56, 5167715), (70, 4134172), (76, 3807790), (95, 3046232), (98, 2952980), (133, 2175880), (140, 2067086), (152, 1903895), (190, 1523116), (196, 1476490), (245, 1181192), (266, 1087940), (280, 1033543), (361, 801640), (380, 761558), (392, 738245), (409, 707560), (490, 590596), (532, 543970), (665, 435176), (722, 400820), (760, 380779), (818, 353780), (931, 310840), (980, 295298), (1064, 271985), (1330, 217588), (1444, 200410), (1636, 176890), (1805, 160328), (1862, 155420), (1960, 147649), (2045, 141512), (2527, 114520), (2660, 108794), (2863, 101080), (2888, 100205), (3272, 88445), (3610, 80164), (3724, 77710), (4090, 70756), (4655, 62168), (5054, 57260), (5320, 54397), (5726, 50540), (7220, 40082), (7448, 38855), (7771, 37240), (8180, 35378), (9310, 31084), (10108, 28630), (11452, 25270), (12635, 22904), (14315, 20216), (14440, 20041), (15542, 18620), (16360, 17689)]