890268904

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1\times {\mathrm{809}}^1$

素因数の和:1322

約数の個数: 64

約数和(自身を含む): 1958774400

約数和(自身を除く): 1068505496

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 457, 602, 809, 914, 1204, 1618, 1828, 2408, 3199, 3236, 3656, 5663, 6398, 6472, 11326, 12796, 19651, 22652, 25592, 34787, 39302, 45304, 69574, 78604, 137557, 139148, 157208, 243509, 275114, 278296, 369713, 487018, 550228, 739426, 974036, 1100456, 1478852, 1948072, 2587991, 2957704, 5175982, 10351964, 15897659, 20703928, 31795318, 63590636, 111283613, 127181272, 222567226, 445134452, 890268904]

約数ペア:

[(1, 890268904), (2, 445134452), (4, 222567226), (7, 127181272), (8, 111283613), (14, 63590636), (28, 31795318), (43, 20703928), (56, 15897659), (86, 10351964), (172, 5175982), (301, 2957704), (344, 2587991), (457, 1948072), (602, 1478852), (809, 1100456), (914, 974036), (1204, 739426), (1618, 550228), (1828, 487018), (2408, 369713), (3199, 278296), (3236, 275114), (3656, 243509), (5663, 157208), (6398, 139148), (6472, 137557), (11326, 78604), (12796, 69574), (19651, 45304), (22652, 39302), (25592, 34787)]