7970620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{197}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 20424096

約数和(自身を除く): 12453476

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 197, 238, 289, 340, 394, 476, 578, 595, 788, 985, 1156, 1190, 1379, 1445, 1970, 2023, 2380, 2758, 2890, 3349, 3940, 4046, 5516, 5780, 6698, 6895, 8092, 10115, 13396, 13790, 16745, 20230, 23443, 27580, 33490, 40460, 46886, 56933, 66980, 93772, 113866, 117215, 227732, 234430, 284665, 398531, 468860, 569330, 797062, 1138660, 1594124, 1992655, 3985310, 7970620]

約数ペア:

[(1, 7970620), (2, 3985310), (4, 1992655), (5, 1594124), (7, 1138660), (10, 797062), (14, 569330), (17, 468860), (20, 398531), (28, 284665), (34, 234430), (35, 227732), (68, 117215), (70, 113866), (85, 93772), (119, 66980), (140, 56933), (170, 46886), (197, 40460), (238, 33490), (289, 27580), (340, 23443), (394, 20230), (476, 16745), (578, 13790), (595, 13396), (788, 10115), (985, 8092), (1156, 6895), (1190, 6698), (1379, 5780), (1445, 5516), (1970, 4046), (2023, 3940), (2380, 3349), (2758, 2890)]