21087687680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{1913}}^1\times {\mathrm{2153}}^1$

素因数の和:4091

約数の個数: 88

約数和(自身を含む): 50635689192

約数和(自身を除く): 29548001512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1913, 2153, 2560, 3826, 4306, 5120, 7652, 8612, 9565, 10765, 15304, 17224, 19130, 21530, 30608, 34448, 38260, 43060, 61216, 68896, 76520, 86120, 122432, 137792, 153040, 172240, 244864, 275584, 306080, 344480, 489728, 551168, 612160, 688960, 979456, 1102336, 1224320, 1377920, 1958912, 2204672, 2448640, 2755840, 4118689, 4897280, 5511680, 8237378, 9794560, 11023360, 16474756, 20593445, 32949512, 41186890, 65899024, 82373780, 131798048, 164747560, 263596096, 329495120, 527192192, 658990240, 1054384384, 1317980480, 2108768768, 2635960960, 4217537536, 5271921920, 10543843840, 21087687680]

約数ペア:

[(1, 21087687680), (2, 10543843840), (4, 5271921920), (5, 4217537536), (8, 2635960960), (10, 2108768768), (16, 1317980480), (20, 1054384384), (32, 658990240), (40, 527192192), (64, 329495120), (80, 263596096), (128, 164747560), (160, 131798048), (256, 82373780), (320, 65899024), (512, 41186890), (640, 32949512), (1024, 20593445), (1280, 16474756), (1913, 11023360), (2153, 9794560), (2560, 8237378), (3826, 5511680), (4306, 4897280), (5120, 4118689), (7652, 2755840), (8612, 2448640), (9565, 2204672), (10765, 1958912), (15304, 1377920), (17224, 1224320), (19130, 1102336), (21530, 979456), (30608, 688960), (34448, 612160), (38260, 551168), (43060, 489728), (61216, 344480), (68896, 306080), (76520, 275584), (86120, 244864), (122432, 172240), (137792, 153040)]