1781175040

素因数分解:

$2^8\times 5^1\times {\mathrm{653}}^1\times {\mathrm{2131}}^1$

素因数の和:2805

約数の個数: 72

約数和(自身を含む): 4275009648

約数和(自身を除く): 2493834608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 653, 1280, 1306, 2131, 2612, 3265, 4262, 5224, 6530, 8524, 10448, 10655, 13060, 17048, 20896, 21310, 26120, 34096, 41792, 42620, 52240, 68192, 83584, 85240, 104480, 136384, 167168, 170480, 208960, 272768, 340960, 417920, 545536, 681920, 835840, 1363840, 1391543, 2727680, 2783086, 5566172, 6957715, 11132344, 13915430, 22264688, 27830860, 44529376, 55661720, 89058752, 111323440, 178117504, 222646880, 356235008, 445293760, 890587520, 1781175040]

約数ペア:

[(1, 1781175040), (2, 890587520), (4, 445293760), (5, 356235008), (8, 222646880), (10, 178117504), (16, 111323440), (20, 89058752), (32, 55661720), (40, 44529376), (64, 27830860), (80, 22264688), (128, 13915430), (160, 11132344), (256, 6957715), (320, 5566172), (640, 2783086), (653, 2727680), (1280, 1391543), (1306, 1363840), (2131, 835840), (2612, 681920), (3265, 545536), (4262, 417920), (5224, 340960), (6530, 272768), (8524, 208960), (10448, 170480), (10655, 167168), (13060, 136384), (17048, 104480), (20896, 85240), (21310, 83584), (26120, 68192), (34096, 52240), (41792, 42620)]