640093440

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{23813}}^1$

素因数の和:23844

約数の個数: 144

約数和(自身を含む): 2336439168

約数和(自身を除く): 1696345728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 13440, 23813, 26880, 47626, 71439, 95252, 119065, 142878, 166691, 190504, 238130, 285756, 333382, 357195, 381008, 476260, 500073, 571512, 666764, 714390, 762016, 833455, 952520, 1000146, 1143024, 1333528, 1428780, 1524032, 1666910, 1905040, 2000292, 2286048, 2500365, 2667056, 2857560, 3048064, 3333820, 3810080, 4000584, 4572096, 5000730, 5334112, 5715120, 6096128, 6667640, 7620160, 8001168, 9144192, 10001460, 10668224, 11430240, 13335280, 15240320, 16002336, 18288384, 20002920, 21336448, 22860480, 26670560, 30480640, 32004672, 40005840, 42672896, 45720960, 53341120, 64009344, 80011680, 91441920, 106682240, 128018688, 160023360, 213364480, 320046720, 640093440]

約数ペア:

[(1, 640093440), (2, 320046720), (3, 213364480), (4, 160023360), (5, 128018688), (6, 106682240), (7, 91441920), (8, 80011680), (10, 64009344), (12, 53341120), (14, 45720960), (15, 42672896), (16, 40005840), (20, 32004672), (21, 30480640), (24, 26670560), (28, 22860480), (30, 21336448), (32, 20002920), (35, 18288384), (40, 16002336), (42, 15240320), (48, 13335280), (56, 11430240), (60, 10668224), (64, 10001460), (70, 9144192), (80, 8001168), (84, 7620160), (96, 6667640), (105, 6096128), (112, 5715120), (120, 5334112), (128, 5000730), (140, 4572096), (160, 4000584), (168, 3810080), (192, 3333820), (210, 3048064), (224, 2857560), (240, 2667056), (256, 2500365), (280, 2286048), (320, 2000292), (336, 1905040), (384, 1666910), (420, 1524032), (448, 1428780), (480, 1333528), (560, 1143024), (640, 1000146), (672, 952520), (768, 833455), (840, 762016), (896, 714390), (960, 666764), (1120, 571512), (1280, 500073), (1344, 476260), (1680, 381008), (1792, 357195), (1920, 333382), (2240, 285756), (2688, 238130), (3360, 190504), (3840, 166691), (4480, 142878), (5376, 119065), (6720, 95252), (8960, 71439), (13440, 47626), (23813, 26880)]