289771818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1\times {\mathrm{487}}^1$

素因数の和:987

約数の個数: 64

約数和(自身を含む): 686604288

約数和(自身を除く): 396832470

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 217, 434, 457, 487, 651, 914, 974, 1302, 1371, 1461, 2742, 2922, 3199, 3409, 6398, 6818, 9597, 10227, 14167, 15097, 19194, 20454, 28334, 30194, 42501, 45291, 85002, 90582, 99169, 105679, 198338, 211358, 222559, 297507, 317037, 445118, 595014, 634074, 667677, 1335354, 1557913, 3115826, 4673739, 6899329, 9347478, 13798658, 20697987, 41395974, 48295303, 96590606, 144885909, 289771818]

約数ペア:

[(1, 289771818), (2, 144885909), (3, 96590606), (6, 48295303), (7, 41395974), (14, 20697987), (21, 13798658), (31, 9347478), (42, 6899329), (62, 4673739), (93, 3115826), (186, 1557913), (217, 1335354), (434, 667677), (457, 634074), (487, 595014), (651, 445118), (914, 317037), (974, 297507), (1302, 222559), (1371, 211358), (1461, 198338), (2742, 105679), (2922, 99169), (3199, 90582), (3409, 85002), (6398, 45291), (6818, 42501), (9597, 30194), (10227, 28334), (14167, 20454), (15097, 19194)]