289442860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:911

約数の個数: 96

約数和(自身を含む): 724405248

約数和(自身を除く): 434962388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 71, 74, 140, 142, 148, 185, 259, 284, 355, 370, 497, 518, 710, 740, 787, 994, 1036, 1295, 1420, 1574, 1988, 2485, 2590, 2627, 3148, 3935, 4970, 5180, 5254, 5509, 7870, 9940, 10508, 11018, 13135, 15740, 18389, 22036, 26270, 27545, 29119, 36778, 52540, 55090, 55877, 58238, 73556, 91945, 110180, 111754, 116476, 145595, 183890, 203833, 223508, 279385, 291190, 367780, 391139, 407666, 558770, 582380, 782278, 815332, 1019165, 1117540, 1564556, 1955695, 2038330, 2067449, 3911390, 4076660, 4134898, 7822780, 8269796, 10337245, 14472143, 20674490, 28944286, 41348980, 57888572, 72360715, 144721430, 289442860]

約数ペア:

[(1, 289442860), (2, 144721430), (4, 72360715), (5, 57888572), (7, 41348980), (10, 28944286), (14, 20674490), (20, 14472143), (28, 10337245), (35, 8269796), (37, 7822780), (70, 4134898), (71, 4076660), (74, 3911390), (140, 2067449), (142, 2038330), (148, 1955695), (185, 1564556), (259, 1117540), (284, 1019165), (355, 815332), (370, 782278), (497, 582380), (518, 558770), (710, 407666), (740, 391139), (787, 367780), (994, 291190), (1036, 279385), (1295, 223508), (1420, 203833), (1574, 183890), (1988, 145595), (2485, 116476), (2590, 111754), (2627, 110180), (3148, 91945), (3935, 73556), (4970, 58238), (5180, 55877), (5254, 55090), (5509, 52540), (7870, 36778), (9940, 29119), (10508, 27545), (11018, 26270), (13135, 22036), (15740, 18389)]