171391220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1223}}^1$

素因数の和:1270

約数の個数: 144

約数和(自身を含む): 492283008

約数和(自身を除く): 320891788

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 55, 65, 70, 77, 91, 98, 110, 130, 140, 143, 154, 182, 196, 220, 245, 260, 286, 308, 364, 385, 455, 490, 539, 572, 637, 715, 770, 910, 980, 1001, 1078, 1223, 1274, 1430, 1540, 1820, 2002, 2156, 2446, 2548, 2695, 2860, 3185, 4004, 4892, 5005, 5390, 6115, 6370, 7007, 8561, 10010, 10780, 12230, 12740, 13453, 14014, 15899, 17122, 20020, 24460, 26906, 28028, 31798, 34244, 35035, 42805, 53812, 59927, 63596, 67265, 70070, 79495, 85610, 94171, 111293, 119854, 134530, 140140, 158990, 171220, 174889, 188342, 222586, 239708, 269060, 299635, 317980, 349778, 376684, 445172, 470855, 556465, 599270, 659197, 699556, 779051, 874445, 941710, 1112930, 1198540, 1224223, 1318394, 1558102, 1748890, 1883420, 2225860, 2448446, 2636788, 3116204, 3295985, 3497780, 3895255, 4896892, 6121115, 6591970, 7790510, 8569561, 12242230, 13183940, 15581020, 17139122, 24484460, 34278244, 42847805, 85695610, 171391220]

約数ペア:

[(1, 171391220), (2, 85695610), (4, 42847805), (5, 34278244), (7, 24484460), (10, 17139122), (11, 15581020), (13, 13183940), (14, 12242230), (20, 8569561), (22, 7790510), (26, 6591970), (28, 6121115), (35, 4896892), (44, 3895255), (49, 3497780), (52, 3295985), (55, 3116204), (65, 2636788), (70, 2448446), (77, 2225860), (91, 1883420), (98, 1748890), (110, 1558102), (130, 1318394), (140, 1224223), (143, 1198540), (154, 1112930), (182, 941710), (196, 874445), (220, 779051), (245, 699556), (260, 659197), (286, 599270), (308, 556465), (364, 470855), (385, 445172), (455, 376684), (490, 349778), (539, 317980), (572, 299635), (637, 269060), (715, 239708), (770, 222586), (910, 188342), (980, 174889), (1001, 171220), (1078, 158990), (1223, 140140), (1274, 134530), (1430, 119854), (1540, 111293), (1820, 94171), (2002, 85610), (2156, 79495), (2446, 70070), (2548, 67265), (2695, 63596), (2860, 59927), (3185, 53812), (4004, 42805), (4892, 35035), (5005, 34244), (5390, 31798), (6115, 28028), (6370, 26906), (7007, 24460), (8561, 20020), (10010, 17122), (10780, 15899), (12230, 14014), (12740, 13453)]