81664912

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:636

約数の個数: 80

約数和(自身を含む): 191352832

約数和(自身を除く): 109687920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 43, 56, 62, 86, 112, 124, 172, 217, 248, 301, 344, 434, 496, 547, 602, 688, 868, 1094, 1204, 1333, 1736, 2188, 2408, 2666, 3472, 3829, 4376, 4816, 5332, 7658, 8752, 9331, 10664, 15316, 16957, 18662, 21328, 23521, 30632, 33914, 37324, 47042, 61264, 67828, 74648, 94084, 118699, 135656, 149296, 164647, 188168, 237398, 271312, 329294, 376336, 474796, 658588, 729151, 949592, 1317176, 1458302, 1899184, 2634352, 2916604, 5104057, 5833208, 10208114, 11666416, 20416228, 40832456, 81664912]

約数ペア:

[(1, 81664912), (2, 40832456), (4, 20416228), (7, 11666416), (8, 10208114), (14, 5833208), (16, 5104057), (28, 2916604), (31, 2634352), (43, 1899184), (56, 1458302), (62, 1317176), (86, 949592), (112, 729151), (124, 658588), (172, 474796), (217, 376336), (248, 329294), (301, 271312), (344, 237398), (434, 188168), (496, 164647), (547, 149296), (602, 135656), (688, 118699), (868, 94084), (1094, 74648), (1204, 67828), (1333, 61264), (1736, 47042), (2188, 37324), (2408, 33914), (2666, 30632), (3472, 23521), (3829, 21328), (4376, 18662), (4816, 16957), (5332, 15316), (7658, 10664), (8752, 9331)]