257446740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1303}}^1$

素因数の和:1441

約数の個数: 96

約数和(自身を含む): 749226240

約数和(自身を除く): 491779500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 89, 111, 148, 178, 185, 222, 267, 356, 370, 444, 445, 534, 555, 740, 890, 1068, 1110, 1303, 1335, 1780, 2220, 2606, 2670, 3293, 3909, 5212, 5340, 6515, 6586, 7818, 9879, 13030, 13172, 15636, 16465, 19545, 19758, 26060, 32930, 39090, 39516, 48211, 49395, 65860, 78180, 96422, 98790, 115967, 144633, 192844, 197580, 231934, 241055, 289266, 347901, 463868, 482110, 578532, 579835, 695802, 723165, 964220, 1159670, 1391604, 1446330, 1739505, 2319340, 2892660, 3479010, 4290779, 6958020, 8581558, 12872337, 17163116, 21453895, 25744674, 42907790, 51489348, 64361685, 85815580, 128723370, 257446740]

約数ペア:

[(1, 257446740), (2, 128723370), (3, 85815580), (4, 64361685), (5, 51489348), (6, 42907790), (10, 25744674), (12, 21453895), (15, 17163116), (20, 12872337), (30, 8581558), (37, 6958020), (60, 4290779), (74, 3479010), (89, 2892660), (111, 2319340), (148, 1739505), (178, 1446330), (185, 1391604), (222, 1159670), (267, 964220), (356, 723165), (370, 695802), (444, 579835), (445, 578532), (534, 482110), (555, 463868), (740, 347901), (890, 289266), (1068, 241055), (1110, 231934), (1303, 197580), (1335, 192844), (1780, 144633), (2220, 115967), (2606, 98790), (2670, 96422), (3293, 78180), (3909, 65860), (5212, 49395), (5340, 48211), (6515, 39516), (6586, 39090), (7818, 32930), (9879, 26060), (13030, 19758), (13172, 19545), (15636, 16465)]