72494060

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 155584800

約数和(自身を除く): 83090740

約数列:

[1, 2, 4, 5, 10, 20, 89, 139, 178, 278, 293, 356, 445, 556, 586, 695, 890, 1172, 1390, 1465, 1780, 2780, 2930, 5860, 12371, 24742, 26077, 40727, 49484, 52154, 61855, 81454, 104308, 123710, 130385, 162908, 203635, 247420, 260770, 407270, 521540, 814540, 3624703, 7249406, 14498812, 18123515, 36247030, 72494060]

約数ペア:

[(1, 72494060), (2, 36247030), (4, 18123515), (5, 14498812), (10, 7249406), (20, 3624703), (89, 814540), (139, 521540), (178, 407270), (278, 260770), (293, 247420), (356, 203635), (445, 162908), (556, 130385), (586, 123710), (695, 104308), (890, 81454), (1172, 61855), (1390, 52154), (1465, 49484), (1780, 40727), (2780, 26077), (2930, 24742), (5860, 12371)]