77658140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{727}}^1$

素因数の和:859

約数の個数: 72

約数和(自身を含む): 191711520

約数和(自身を除く): 114053380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 140, 196, 218, 245, 436, 490, 545, 727, 763, 980, 1090, 1454, 1526, 2180, 2908, 3052, 3635, 3815, 5089, 5341, 7270, 7630, 10178, 10682, 14540, 15260, 20356, 21364, 25445, 26705, 35623, 50890, 53410, 71246, 79243, 101780, 106820, 142492, 158486, 178115, 316972, 356230, 396215, 554701, 712460, 792430, 1109402, 1584860, 2218804, 2773505, 3882907, 5547010, 7765814, 11094020, 15531628, 19414535, 38829070, 77658140]

約数ペア:

[(1, 77658140), (2, 38829070), (4, 19414535), (5, 15531628), (7, 11094020), (10, 7765814), (14, 5547010), (20, 3882907), (28, 2773505), (35, 2218804), (49, 1584860), (70, 1109402), (98, 792430), (109, 712460), (140, 554701), (196, 396215), (218, 356230), (245, 316972), (436, 178115), (490, 158486), (545, 142492), (727, 106820), (763, 101780), (980, 79243), (1090, 71246), (1454, 53410), (1526, 50890), (2180, 35623), (2908, 26705), (3052, 25445), (3635, 21364), (3815, 20356), (5089, 15260), (5341, 14540), (7270, 10682), (7630, 10178)]