257805540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:430

約数の個数: 144

約数和(自身を含む): 809683056

約数和(自身を除く): 551877516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 181, 193, 205, 246, 362, 369, 386, 410, 492, 543, 579, 615, 724, 738, 772, 820, 905, 965, 1086, 1158, 1230, 1476, 1629, 1737, 1810, 1845, 1930, 2172, 2316, 2460, 2715, 2895, 3258, 3474, 3620, 3690, 3860, 5430, 5790, 6516, 6948, 7380, 7421, 7913, 8145, 8685, 10860, 11580, 14842, 15826, 16290, 17370, 22263, 23739, 29684, 31652, 32580, 34740, 34933, 37105, 39565, 44526, 47478, 66789, 69866, 71217, 74210, 79130, 89052, 94956, 104799, 111315, 118695, 133578, 139732, 142434, 148420, 158260, 174665, 209598, 222630, 237390, 267156, 284868, 314397, 333945, 349330, 356085, 419196, 445260, 474780, 523995, 628794, 667890, 698660, 712170, 1047990, 1257588, 1335780, 1424340, 1432253, 1571985, 2095980, 2864506, 3143970, 4296759, 5729012, 6287940, 7161265, 8593518, 12890277, 14322530, 17187036, 21483795, 25780554, 28645060, 42967590, 51561108, 64451385, 85935180, 128902770, 257805540]

約数ペア:

[(1, 257805540), (2, 128902770), (3, 85935180), (4, 64451385), (5, 51561108), (6, 42967590), (9, 28645060), (10, 25780554), (12, 21483795), (15, 17187036), (18, 14322530), (20, 12890277), (30, 8593518), (36, 7161265), (41, 6287940), (45, 5729012), (60, 4296759), (82, 3143970), (90, 2864506), (123, 2095980), (164, 1571985), (180, 1432253), (181, 1424340), (193, 1335780), (205, 1257588), (246, 1047990), (362, 712170), (369, 698660), (386, 667890), (410, 628794), (492, 523995), (543, 474780), (579, 445260), (615, 419196), (724, 356085), (738, 349330), (772, 333945), (820, 314397), (905, 284868), (965, 267156), (1086, 237390), (1158, 222630), (1230, 209598), (1476, 174665), (1629, 158260), (1737, 148420), (1810, 142434), (1845, 139732), (1930, 133578), (2172, 118695), (2316, 111315), (2460, 104799), (2715, 94956), (2895, 89052), (3258, 79130), (3474, 74210), (3620, 71217), (3690, 69866), (3860, 66789), (5430, 47478), (5790, 44526), (6516, 39565), (6948, 37105), (7380, 34933), (7421, 34740), (7913, 32580), (8145, 31652), (8685, 29684), (10860, 23739), (11580, 22263), (14842, 17370), (15826, 16290)]