390264320

素因数分解:

$2^9\times 5^1\times {\mathrm{157}}^1\times {\mathrm{971}}^1$

素因数の和:1151

約数の個数: 80

約数和(自身を含む): 942649488

約数和(自身を除く): 552385168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 512, 628, 640, 785, 971, 1256, 1280, 1570, 1942, 2512, 2560, 3140, 3884, 4855, 5024, 6280, 7768, 9710, 10048, 12560, 15536, 19420, 20096, 25120, 31072, 38840, 40192, 50240, 62144, 77680, 80384, 100480, 124288, 152447, 155360, 200960, 248576, 304894, 310720, 401920, 497152, 609788, 621440, 762235, 1219576, 1242880, 1524470, 2439152, 2485760, 3048940, 4878304, 6097880, 9756608, 12195760, 19513216, 24391520, 39026432, 48783040, 78052864, 97566080, 195132160, 390264320]

約数ペア:

[(1, 390264320), (2, 195132160), (4, 97566080), (5, 78052864), (8, 48783040), (10, 39026432), (16, 24391520), (20, 19513216), (32, 12195760), (40, 9756608), (64, 6097880), (80, 4878304), (128, 3048940), (157, 2485760), (160, 2439152), (256, 1524470), (314, 1242880), (320, 1219576), (512, 762235), (628, 621440), (640, 609788), (785, 497152), (971, 401920), (1256, 310720), (1280, 304894), (1570, 248576), (1942, 200960), (2512, 155360), (2560, 152447), (3140, 124288), (3884, 100480), (4855, 80384), (5024, 77680), (6280, 62144), (7768, 50240), (9710, 40192), (10048, 38840), (12560, 31072), (15536, 25120), (19420, 20096)]