78209180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1933}}^1$

素因数の和:1983

約数の個数: 72

約数和(自身を含む): 199495968

約数和(自身を除く): 121286788

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 476, 578, 595, 1156, 1190, 1445, 1933, 2023, 2380, 2890, 3866, 4046, 5780, 7732, 8092, 9665, 10115, 13531, 19330, 20230, 27062, 32861, 38660, 40460, 54124, 65722, 67655, 131444, 135310, 164305, 230027, 270620, 328610, 460054, 558637, 657220, 920108, 1117274, 1150135, 2234548, 2300270, 2793185, 3910459, 4600540, 5586370, 7820918, 11172740, 15641836, 19552295, 39104590, 78209180]

約数ペア:

[(1, 78209180), (2, 39104590), (4, 19552295), (5, 15641836), (7, 11172740), (10, 7820918), (14, 5586370), (17, 4600540), (20, 3910459), (28, 2793185), (34, 2300270), (35, 2234548), (68, 1150135), (70, 1117274), (85, 920108), (119, 657220), (140, 558637), (170, 460054), (238, 328610), (289, 270620), (340, 230027), (476, 164305), (578, 135310), (595, 131444), (1156, 67655), (1190, 65722), (1445, 54124), (1933, 40460), (2023, 38660), (2380, 32861), (2890, 27062), (3866, 20230), (4046, 19330), (5780, 13531), (7732, 10115), (8092, 9665)]