138020680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15901}}^1$

素因数の和:15950

約数の個数: 64

約数和(自身を含む): 366382080

約数和(自身を除く): 228361400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 15901, 31802, 63604, 79505, 111307, 127208, 159010, 222614, 318020, 445228, 492931, 556535, 636040, 890456, 985862, 1113070, 1971724, 2226140, 2464655, 3450517, 3943448, 4452280, 4929310, 6901034, 9858620, 13802068, 17252585, 19717240, 27604136, 34505170, 69010340, 138020680]

約数ペア:

[(1, 138020680), (2, 69010340), (4, 34505170), (5, 27604136), (7, 19717240), (8, 17252585), (10, 13802068), (14, 9858620), (20, 6901034), (28, 4929310), (31, 4452280), (35, 3943448), (40, 3450517), (56, 2464655), (62, 2226140), (70, 1971724), (124, 1113070), (140, 985862), (155, 890456), (217, 636040), (248, 556535), (280, 492931), (310, 445228), (434, 318020), (620, 222614), (868, 159010), (1085, 127208), (1240, 111307), (1736, 79505), (2170, 63604), (4340, 31802), (8680, 15901)]