64401920

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2287}}^1$

素因数の和:2321

約数の個数: 80

約数和(自身を含む): 168524928

約数和(自身を除く): 104123008

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 512, 640, 704, 880, 1280, 1408, 1760, 2287, 2560, 2816, 3520, 4574, 5632, 7040, 9148, 11435, 14080, 18296, 22870, 25157, 28160, 36592, 45740, 50314, 73184, 91480, 100628, 125785, 146368, 182960, 201256, 251570, 292736, 365920, 402512, 503140, 585472, 731840, 805024, 1006280, 1170944, 1463680, 1610048, 2012560, 2927360, 3220096, 4025120, 5854720, 6440192, 8050240, 12880384, 16100480, 32200960, 64401920]

約数ペア:

[(1, 64401920), (2, 32200960), (4, 16100480), (5, 12880384), (8, 8050240), (10, 6440192), (11, 5854720), (16, 4025120), (20, 3220096), (22, 2927360), (32, 2012560), (40, 1610048), (44, 1463680), (55, 1170944), (64, 1006280), (80, 805024), (88, 731840), (110, 585472), (128, 503140), (160, 402512), (176, 365920), (220, 292736), (256, 251570), (320, 201256), (352, 182960), (440, 146368), (512, 125785), (640, 100628), (704, 91480), (880, 73184), (1280, 50314), (1408, 45740), (1760, 36592), (2287, 28160), (2560, 25157), (2816, 22870), (3520, 18296), (4574, 14080), (5632, 11435), (7040, 9148)]