171773420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:272

約数の個数: 144

約数和(自身を含む): 459839520

約数和(自身を除く): 288066100

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 97, 98, 130, 139, 140, 182, 194, 196, 245, 260, 278, 364, 388, 455, 485, 490, 556, 637, 679, 695, 910, 970, 973, 980, 1261, 1274, 1358, 1390, 1807, 1820, 1940, 1946, 2522, 2548, 2716, 2780, 3185, 3395, 3614, 3892, 4753, 4865, 5044, 6305, 6370, 6790, 6811, 7228, 8827, 9035, 9506, 9730, 12610, 12649, 12740, 13483, 13580, 13622, 17654, 18070, 19012, 19460, 23765, 25220, 25298, 26966, 27244, 34055, 35308, 36140, 44135, 47530, 50596, 53932, 61789, 63245, 67415, 68110, 88270, 88543, 94381, 95060, 123578, 126490, 134830, 136220, 175279, 176540, 177086, 188762, 247156, 252980, 269660, 308945, 350558, 354172, 377524, 442715, 471905, 617890, 660667, 701116, 876395, 885430, 943810, 1226953, 1235780, 1321334, 1752790, 1770860, 1887620, 2453906, 2642668, 3303335, 3505580, 4907812, 6134765, 6606670, 8588671, 12269530, 13213340, 17177342, 24539060, 34354684, 42943355, 85886710, 171773420]

約数ペア:

[(1, 171773420), (2, 85886710), (4, 42943355), (5, 34354684), (7, 24539060), (10, 17177342), (13, 13213340), (14, 12269530), (20, 8588671), (26, 6606670), (28, 6134765), (35, 4907812), (49, 3505580), (52, 3303335), (65, 2642668), (70, 2453906), (91, 1887620), (97, 1770860), (98, 1752790), (130, 1321334), (139, 1235780), (140, 1226953), (182, 943810), (194, 885430), (196, 876395), (245, 701116), (260, 660667), (278, 617890), (364, 471905), (388, 442715), (455, 377524), (485, 354172), (490, 350558), (556, 308945), (637, 269660), (679, 252980), (695, 247156), (910, 188762), (970, 177086), (973, 176540), (980, 175279), (1261, 136220), (1274, 134830), (1358, 126490), (1390, 123578), (1807, 95060), (1820, 94381), (1940, 88543), (1946, 88270), (2522, 68110), (2548, 67415), (2716, 63245), (2780, 61789), (3185, 53932), (3395, 50596), (3614, 47530), (3892, 44135), (4753, 36140), (4865, 35308), (5044, 34055), (6305, 27244), (6370, 26966), (6790, 25298), (6811, 25220), (7228, 23765), (8827, 19460), (9035, 19012), (9506, 18070), (9730, 17654), (12610, 13622), (12649, 13580), (12740, 13483)]