1251840840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{619}}^1\times {\mathrm{887}}^1$

素因数の和:1539

約数の個数: 128

約数和(自身を含む): 3964032000

約数和(自身を除く): 2712191160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 619, 760, 887, 1140, 1238, 1774, 1857, 2280, 2476, 2661, 3095, 3548, 3714, 4435, 4952, 5322, 6190, 7096, 7428, 8870, 9285, 10644, 11761, 12380, 13305, 14856, 16853, 17740, 18570, 21288, 23522, 24760, 26610, 33706, 35283, 35480, 37140, 47044, 50559, 53220, 58805, 67412, 70566, 74280, 84265, 94088, 101118, 106440, 117610, 134824, 141132, 168530, 176415, 202236, 235220, 252795, 282264, 337060, 352830, 404472, 470440, 505590, 549053, 674120, 705660, 1011180, 1098106, 1411320, 1647159, 2022360, 2196212, 2745265, 3294318, 4392424, 5490530, 6588636, 8235795, 10432007, 10981060, 13177272, 16471590, 20864014, 21962120, 31296021, 32943180, 41728028, 52160035, 62592042, 65886360, 83456056, 104320070, 125184084, 156480105, 208640140, 250368168, 312960210, 417280280, 625920420, 1251840840]

約数ペア:

[(1, 1251840840), (2, 625920420), (3, 417280280), (4, 312960210), (5, 250368168), (6, 208640140), (8, 156480105), (10, 125184084), (12, 104320070), (15, 83456056), (19, 65886360), (20, 62592042), (24, 52160035), (30, 41728028), (38, 32943180), (40, 31296021), (57, 21962120), (60, 20864014), (76, 16471590), (95, 13177272), (114, 10981060), (120, 10432007), (152, 8235795), (190, 6588636), (228, 5490530), (285, 4392424), (380, 3294318), (456, 2745265), (570, 2196212), (619, 2022360), (760, 1647159), (887, 1411320), (1140, 1098106), (1238, 1011180), (1774, 705660), (1857, 674120), (2280, 549053), (2476, 505590), (2661, 470440), (3095, 404472), (3548, 352830), (3714, 337060), (4435, 282264), (4952, 252795), (5322, 235220), (6190, 202236), (7096, 176415), (7428, 168530), (8870, 141132), (9285, 134824), (10644, 117610), (11761, 106440), (12380, 101118), (13305, 94088), (14856, 84265), (16853, 74280), (17740, 70566), (18570, 67412), (21288, 58805), (23522, 53220), (24760, 50559), (26610, 47044), (33706, 37140), (35283, 35480)]