20161470

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:230

約数の個数: 128

約数和(自身を含む): 60456960

約数和(自身を除く): 40295490

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 31, 35, 38, 42, 57, 62, 70, 93, 95, 105, 114, 133, 155, 163, 186, 190, 210, 217, 266, 285, 310, 326, 399, 434, 465, 489, 570, 589, 651, 665, 798, 815, 930, 978, 1085, 1141, 1178, 1302, 1330, 1630, 1767, 1995, 2170, 2282, 2445, 2945, 3097, 3255, 3423, 3534, 3990, 4123, 4890, 5053, 5705, 5890, 6194, 6510, 6846, 8246, 8835, 9291, 10106, 11410, 12369, 15159, 15485, 17115, 17670, 18582, 20615, 21679, 24738, 25265, 30318, 30970, 34230, 35371, 41230, 43358, 46455, 50530, 61845, 65037, 70742, 75795, 92910, 96007, 106113, 108395, 123690, 130074, 151590, 176855, 192014, 212226, 216790, 288021, 325185, 353710, 480035, 530565, 576042, 650370, 672049, 960070, 1061130, 1344098, 1440105, 2016147, 2880210, 3360245, 4032294, 6720490, 10080735, 20161470]

約数ペア:

[(1, 20161470), (2, 10080735), (3, 6720490), (5, 4032294), (6, 3360245), (7, 2880210), (10, 2016147), (14, 1440105), (15, 1344098), (19, 1061130), (21, 960070), (30, 672049), (31, 650370), (35, 576042), (38, 530565), (42, 480035), (57, 353710), (62, 325185), (70, 288021), (93, 216790), (95, 212226), (105, 192014), (114, 176855), (133, 151590), (155, 130074), (163, 123690), (186, 108395), (190, 106113), (210, 96007), (217, 92910), (266, 75795), (285, 70742), (310, 65037), (326, 61845), (399, 50530), (434, 46455), (465, 43358), (489, 41230), (570, 35371), (589, 34230), (651, 30970), (665, 30318), (798, 25265), (815, 24738), (930, 21679), (978, 20615), (1085, 18582), (1141, 17670), (1178, 17115), (1302, 15485), (1330, 15159), (1630, 12369), (1767, 11410), (1995, 10106), (2170, 9291), (2282, 8835), (2445, 8246), (2945, 6846), (3097, 6510), (3255, 6194), (3423, 5890), (3534, 5705), (3990, 5053), (4123, 4890)]