20161575680

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{13829}}^1$

素因数の和:13934

約数の個数: 144

約数和(自身を含む): 51901002720

約数和(自身を除く): 31739427040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 67, 68, 80, 85, 128, 134, 136, 160, 170, 256, 268, 272, 320, 335, 340, 536, 544, 640, 670, 680, 1072, 1088, 1139, 1280, 1340, 1360, 2144, 2176, 2278, 2680, 2720, 4288, 4352, 4556, 5360, 5440, 5695, 8576, 9112, 10720, 10880, 11390, 13829, 17152, 18224, 21440, 21760, 22780, 27658, 36448, 42880, 45560, 55316, 69145, 72896, 85760, 91120, 110632, 138290, 145792, 182240, 221264, 235093, 276580, 291584, 364480, 442528, 470186, 553160, 728960, 885056, 926543, 940372, 1106320, 1175465, 1457920, 1770112, 1853086, 1880744, 2212640, 2350930, 3540224, 3706172, 3761488, 4425280, 4632715, 4701860, 7412344, 7522976, 8850560, 9265430, 9403720, 14824688, 15045952, 15751231, 17701120, 18530860, 18807440, 29649376, 30091904, 31502462, 37061720, 37614880, 59298752, 60183808, 63004924, 74123440, 75229760, 78756155, 118597504, 126009848, 148246880, 150459520, 157512310, 237195008, 252019696, 296493760, 300919040, 315024620, 504039392, 592987520, 630049240, 1008078784, 1185975040, 1260098480, 2016157568, 2520196960, 4032315136, 5040393920, 10080787840, 20161575680]

約数ペア:

[(1, 20161575680), (2, 10080787840), (4, 5040393920), (5, 4032315136), (8, 2520196960), (10, 2016157568), (16, 1260098480), (17, 1185975040), (20, 1008078784), (32, 630049240), (34, 592987520), (40, 504039392), (64, 315024620), (67, 300919040), (68, 296493760), (80, 252019696), (85, 237195008), (128, 157512310), (134, 150459520), (136, 148246880), (160, 126009848), (170, 118597504), (256, 78756155), (268, 75229760), (272, 74123440), (320, 63004924), (335, 60183808), (340, 59298752), (536, 37614880), (544, 37061720), (640, 31502462), (670, 30091904), (680, 29649376), (1072, 18807440), (1088, 18530860), (1139, 17701120), (1280, 15751231), (1340, 15045952), (1360, 14824688), (2144, 9403720), (2176, 9265430), (2278, 8850560), (2680, 7522976), (2720, 7412344), (4288, 4701860), (4352, 4632715), (4556, 4425280), (5360, 3761488), (5440, 3706172), (5695, 3540224), (8576, 2350930), (9112, 2212640), (10720, 1880744), (10880, 1853086), (11390, 1770112), (13829, 1457920), (17152, 1175465), (18224, 1106320), (21440, 940372), (21760, 926543), (22780, 885056), (27658, 728960), (36448, 553160), (42880, 470186), (45560, 442528), (55316, 364480), (69145, 291584), (72896, 276580), (85760, 235093), (91120, 221264), (110632, 182240), (138290, 145792)]