840718340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{1889}}^1$

素因数の和:1950

約数の個数: 144

約数和(自身を含む): 2339487360

約数和(自身を除く): 1498769020

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 20, 22, 28, 34, 35, 44, 55, 68, 70, 77, 85, 110, 119, 140, 154, 170, 187, 220, 238, 289, 308, 340, 374, 385, 476, 578, 595, 748, 770, 935, 1156, 1190, 1309, 1445, 1540, 1870, 1889, 2023, 2380, 2618, 2890, 3179, 3740, 3778, 4046, 5236, 5780, 6358, 6545, 7556, 8092, 9445, 10115, 12716, 13090, 13223, 15895, 18890, 20230, 20779, 22253, 26180, 26446, 31790, 32113, 37780, 40460, 41558, 44506, 52892, 63580, 64226, 66115, 83116, 89012, 103895, 111265, 128452, 132230, 145453, 160565, 207790, 222530, 224791, 264460, 290906, 321130, 353243, 415580, 445060, 449582, 545921, 581812, 642260, 706486, 727265, 899164, 1091842, 1123955, 1412972, 1454530, 1766215, 2183684, 2247910, 2472701, 2729605, 2909060, 3532430, 3821447, 4495820, 4945402, 5459210, 6005131, 7064860, 7642894, 9890804, 10918420, 12010262, 12363505, 15285788, 19107235, 24020524, 24727010, 30025655, 38214470, 42035917, 49454020, 60051310, 76428940, 84071834, 120102620, 168143668, 210179585, 420359170, 840718340]

約数ペア:

[(1, 840718340), (2, 420359170), (4, 210179585), (5, 168143668), (7, 120102620), (10, 84071834), (11, 76428940), (14, 60051310), (17, 49454020), (20, 42035917), (22, 38214470), (28, 30025655), (34, 24727010), (35, 24020524), (44, 19107235), (55, 15285788), (68, 12363505), (70, 12010262), (77, 10918420), (85, 9890804), (110, 7642894), (119, 7064860), (140, 6005131), (154, 5459210), (170, 4945402), (187, 4495820), (220, 3821447), (238, 3532430), (289, 2909060), (308, 2729605), (340, 2472701), (374, 2247910), (385, 2183684), (476, 1766215), (578, 1454530), (595, 1412972), (748, 1123955), (770, 1091842), (935, 899164), (1156, 727265), (1190, 706486), (1309, 642260), (1445, 581812), (1540, 545921), (1870, 449582), (1889, 445060), (2023, 415580), (2380, 353243), (2618, 321130), (2890, 290906), (3179, 264460), (3740, 224791), (3778, 222530), (4046, 207790), (5236, 160565), (5780, 145453), (6358, 132230), (6545, 128452), (7556, 111265), (8092, 103895), (9445, 89012), (10115, 83116), (12716, 66115), (13090, 64226), (13223, 63580), (15895, 52892), (18890, 44506), (20230, 41558), (20779, 40460), (22253, 37780), (26180, 32113), (26446, 31790)]