18971680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1303}}^1$

素因数の和:1338

約数の個数: 96

約数和(自身を含む): 55206144

約数和(自身を除く): 36234464

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1303, 1456, 1820, 2080, 2606, 2912, 3640, 5212, 6515, 7280, 9121, 10424, 13030, 14560, 16939, 18242, 20848, 26060, 33878, 36484, 41696, 45605, 52120, 67756, 72968, 84695, 91210, 104240, 118573, 135512, 145936, 169390, 182420, 208480, 237146, 271024, 291872, 338780, 364840, 474292, 542048, 592865, 677560, 729680, 948584, 1185730, 1355120, 1459360, 1897168, 2371460, 2710240, 3794336, 4742920, 9485840, 18971680]

約数ペア:

[(1, 18971680), (2, 9485840), (4, 4742920), (5, 3794336), (7, 2710240), (8, 2371460), (10, 1897168), (13, 1459360), (14, 1355120), (16, 1185730), (20, 948584), (26, 729680), (28, 677560), (32, 592865), (35, 542048), (40, 474292), (52, 364840), (56, 338780), (65, 291872), (70, 271024), (80, 237146), (91, 208480), (104, 182420), (112, 169390), (130, 145936), (140, 135512), (160, 118573), (182, 104240), (208, 91210), (224, 84695), (260, 72968), (280, 67756), (364, 52120), (416, 45605), (455, 41696), (520, 36484), (560, 33878), (728, 26060), (910, 20848), (1040, 18242), (1120, 16939), (1303, 14560), (1456, 13030), (1820, 10424), (2080, 9121), (2606, 7280), (2912, 6515), (3640, 5212)]