157528840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:503

約数の個数: 128

約数和(自身を含む): 430686720

約数和(自身を除く): 273157880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 61, 70, 92, 115, 122, 140, 161, 184, 230, 244, 280, 305, 322, 401, 427, 460, 488, 610, 644, 802, 805, 854, 920, 1220, 1288, 1403, 1604, 1610, 1708, 2005, 2135, 2440, 2806, 2807, 3208, 3220, 3416, 4010, 4270, 5612, 5614, 6440, 7015, 8020, 8540, 9223, 9821, 11224, 11228, 14030, 14035, 16040, 17080, 18446, 19642, 22456, 24461, 28060, 28070, 36892, 39284, 46115, 48922, 49105, 56120, 56140, 64561, 73784, 78568, 92230, 97844, 98210, 112280, 122305, 129122, 171227, 184460, 195688, 196420, 244610, 258244, 322805, 342454, 368920, 392840, 489220, 516488, 562603, 645610, 684908, 856135, 978440, 1125206, 1291220, 1369816, 1712270, 2250412, 2582440, 2813015, 3424540, 3938221, 4500824, 5626030, 6849080, 7876442, 11252060, 15752884, 19691105, 22504120, 31505768, 39382210, 78764420, 157528840]

約数ペア:

[(1, 157528840), (2, 78764420), (4, 39382210), (5, 31505768), (7, 22504120), (8, 19691105), (10, 15752884), (14, 11252060), (20, 7876442), (23, 6849080), (28, 5626030), (35, 4500824), (40, 3938221), (46, 3424540), (56, 2813015), (61, 2582440), (70, 2250412), (92, 1712270), (115, 1369816), (122, 1291220), (140, 1125206), (161, 978440), (184, 856135), (230, 684908), (244, 645610), (280, 562603), (305, 516488), (322, 489220), (401, 392840), (427, 368920), (460, 342454), (488, 322805), (610, 258244), (644, 244610), (802, 196420), (805, 195688), (854, 184460), (920, 171227), (1220, 129122), (1288, 122305), (1403, 112280), (1604, 98210), (1610, 97844), (1708, 92230), (2005, 78568), (2135, 73784), (2440, 64561), (2806, 56140), (2807, 56120), (3208, 49105), (3220, 48922), (3416, 46115), (4010, 39284), (4270, 36892), (5612, 28070), (5614, 28060), (6440, 24461), (7015, 22456), (8020, 19642), (8540, 18446), (9223, 17080), (9821, 16040), (11224, 14035), (11228, 14030)]