40308520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{401}}^1$

素因数の和:778

約数の個数: 64

約数和(自身を含む): 104198400

約数和(自身を除く): 63889880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 359, 401, 718, 802, 1436, 1604, 1795, 2005, 2513, 2807, 2872, 3208, 3590, 4010, 5026, 5614, 7180, 8020, 10052, 11228, 12565, 14035, 14360, 16040, 20104, 22456, 25130, 28070, 50260, 56140, 100520, 112280, 143959, 287918, 575836, 719795, 1007713, 1151672, 1439590, 2015426, 2879180, 4030852, 5038565, 5758360, 8061704, 10077130, 20154260, 40308520]

約数ペア:

[(1, 40308520), (2, 20154260), (4, 10077130), (5, 8061704), (7, 5758360), (8, 5038565), (10, 4030852), (14, 2879180), (20, 2015426), (28, 1439590), (35, 1151672), (40, 1007713), (56, 719795), (70, 575836), (140, 287918), (280, 143959), (359, 112280), (401, 100520), (718, 56140), (802, 50260), (1436, 28070), (1604, 25130), (1795, 22456), (2005, 20104), (2513, 16040), (2807, 14360), (2872, 14035), (3208, 12565), (3590, 11228), (4010, 10052), (5026, 8020), (5614, 7180)]