71601920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{331}}^1$

素因数の和:378

約数の個数: 108

約数和(自身を含む): 186277896

約数和(自身を除く): 114675976

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 208, 256, 260, 320, 331, 338, 416, 520, 640, 662, 676, 832, 845, 1040, 1280, 1324, 1352, 1655, 1664, 1690, 2080, 2648, 2704, 3310, 3328, 3380, 4160, 4303, 5296, 5408, 6620, 6760, 8320, 8606, 10592, 10816, 13240, 13520, 16640, 17212, 21184, 21515, 21632, 26480, 27040, 34424, 42368, 43030, 43264, 52960, 54080, 55939, 68848, 84736, 86060, 105920, 108160, 111878, 137696, 172120, 211840, 216320, 223756, 275392, 279695, 344240, 423680, 447512, 550784, 559390, 688480, 895024, 1101568, 1118780, 1376960, 1790048, 2237560, 2753920, 3580096, 4475120, 5507840, 7160192, 8950240, 14320384, 17900480, 35800960, 71601920]

約数ペア:

[(1, 71601920), (2, 35800960), (4, 17900480), (5, 14320384), (8, 8950240), (10, 7160192), (13, 5507840), (16, 4475120), (20, 3580096), (26, 2753920), (32, 2237560), (40, 1790048), (52, 1376960), (64, 1118780), (65, 1101568), (80, 895024), (104, 688480), (128, 559390), (130, 550784), (160, 447512), (169, 423680), (208, 344240), (256, 279695), (260, 275392), (320, 223756), (331, 216320), (338, 211840), (416, 172120), (520, 137696), (640, 111878), (662, 108160), (676, 105920), (832, 86060), (845, 84736), (1040, 68848), (1280, 55939), (1324, 54080), (1352, 52960), (1655, 43264), (1664, 43030), (1690, 42368), (2080, 34424), (2648, 27040), (2704, 26480), (3310, 21632), (3328, 21515), (3380, 21184), (4160, 17212), (4303, 16640), (5296, 13520), (5408, 13240), (6620, 10816), (6760, 10592), (8320, 8606)]