405336320

素因数分解:

$2^8\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2017}}^1$

素因数の和:2195

約数の個数: 72

約数和(自身を含む): 977575704

約数和(自身を除く): 572239384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 628, 640, 785, 1256, 1280, 1570, 2017, 2512, 3140, 4034, 5024, 6280, 8068, 10048, 10085, 12560, 16136, 20096, 20170, 25120, 32272, 40192, 40340, 50240, 64544, 80680, 100480, 129088, 161360, 200960, 258176, 316669, 322720, 516352, 633338, 645440, 1266676, 1290880, 1583345, 2533352, 2581760, 3166690, 5066704, 6333380, 10133408, 12666760, 20266816, 25333520, 40533632, 50667040, 81067264, 101334080, 202668160, 405336320]

約数ペア:

[(1, 405336320), (2, 202668160), (4, 101334080), (5, 81067264), (8, 50667040), (10, 40533632), (16, 25333520), (20, 20266816), (32, 12666760), (40, 10133408), (64, 6333380), (80, 5066704), (128, 3166690), (157, 2581760), (160, 2533352), (256, 1583345), (314, 1290880), (320, 1266676), (628, 645440), (640, 633338), (785, 516352), (1256, 322720), (1280, 316669), (1570, 258176), (2017, 200960), (2512, 161360), (3140, 129088), (4034, 100480), (5024, 80680), (6280, 64544), (8068, 50240), (10048, 40340), (10085, 40192), (12560, 32272), (16136, 25120), (20096, 20170)]