897680980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{563}}^1\times {\mathrm{1627}}^1$

素因数の和:2213

約数の個数: 72

約数和(自身を含む): 2198151648

約数和(自身を除く): 1300470668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 563, 980, 1126, 1627, 2252, 2815, 3254, 3941, 5630, 6508, 7882, 8135, 11260, 11389, 15764, 16270, 19705, 22778, 27587, 32540, 39410, 45556, 55174, 56945, 78820, 79723, 110348, 113890, 137935, 159446, 227780, 275870, 318892, 398615, 551740, 797230, 916001, 1594460, 1832002, 3664004, 4580005, 6412007, 9160010, 12824014, 18320020, 25648028, 32060035, 44884049, 64120070, 89768098, 128240140, 179536196, 224420245, 448840490, 897680980]

約数ペア:

[(1, 897680980), (2, 448840490), (4, 224420245), (5, 179536196), (7, 128240140), (10, 89768098), (14, 64120070), (20, 44884049), (28, 32060035), (35, 25648028), (49, 18320020), (70, 12824014), (98, 9160010), (140, 6412007), (196, 4580005), (245, 3664004), (490, 1832002), (563, 1594460), (980, 916001), (1126, 797230), (1627, 551740), (2252, 398615), (2815, 318892), (3254, 275870), (3941, 227780), (5630, 159446), (6508, 137935), (7882, 113890), (8135, 110348), (11260, 79723), (11389, 78820), (15764, 56945), (16270, 55174), (19705, 45556), (22778, 39410), (27587, 32540)]