251512920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{727}}^1$

素因数の和:806

約数の個数: 144

約数和(自身を含む): 845797680

約数和(自身を除く): 594284760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 727, 744, 930, 961, 1116, 1240, 1395, 1454, 1860, 1922, 2181, 2232, 2790, 2883, 2908, 3635, 3720, 3844, 4362, 4805, 5580, 5766, 5816, 6543, 7270, 7688, 8649, 8724, 9610, 10905, 11160, 11532, 13086, 14415, 14540, 17298, 17448, 19220, 21810, 22537, 23064, 26172, 28830, 29080, 32715, 34596, 38440, 43245, 43620, 45074, 52344, 57660, 65430, 67611, 69192, 86490, 87240, 90148, 112685, 115320, 130860, 135222, 172980, 180296, 202833, 225370, 261720, 270444, 338055, 345960, 405666, 450740, 540888, 676110, 698647, 811332, 901480, 1014165, 1352220, 1397294, 1622664, 2028330, 2095941, 2704440, 2794588, 3493235, 4056660, 4191882, 5589176, 6287823, 6986470, 8113320, 8383764, 10479705, 12575646, 13972940, 16767528, 20959410, 25151292, 27945880, 31439115, 41918820, 50302584, 62878230, 83837640, 125756460, 251512920]

約数ペア:

[(1, 251512920), (2, 125756460), (3, 83837640), (4, 62878230), (5, 50302584), (6, 41918820), (8, 31439115), (9, 27945880), (10, 25151292), (12, 20959410), (15, 16767528), (18, 13972940), (20, 12575646), (24, 10479705), (30, 8383764), (31, 8113320), (36, 6986470), (40, 6287823), (45, 5589176), (60, 4191882), (62, 4056660), (72, 3493235), (90, 2794588), (93, 2704440), (120, 2095941), (124, 2028330), (155, 1622664), (180, 1397294), (186, 1352220), (248, 1014165), (279, 901480), (310, 811332), (360, 698647), (372, 676110), (465, 540888), (558, 450740), (620, 405666), (727, 345960), (744, 338055), (930, 270444), (961, 261720), (1116, 225370), (1240, 202833), (1395, 180296), (1454, 172980), (1860, 135222), (1922, 130860), (2181, 115320), (2232, 112685), (2790, 90148), (2883, 87240), (2908, 86490), (3635, 69192), (3720, 67611), (3844, 65430), (4362, 57660), (4805, 52344), (5580, 45074), (5766, 43620), (5816, 43245), (6543, 38440), (7270, 34596), (7688, 32715), (8649, 29080), (8724, 28830), (9610, 26172), (10905, 23064), (11160, 22537), (11532, 21810), (13086, 19220), (14415, 17448), (14540, 17298)]