388449100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6949}}^1$

素因数の和:7019

約数の個数: 72

約数和(自身を含む): 929020400

約数和(自身を除く): 540571300

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 172, 215, 260, 325, 430, 559, 650, 860, 1075, 1118, 1300, 2150, 2236, 2795, 4300, 5590, 6949, 11180, 13898, 13975, 27796, 27950, 34745, 55900, 69490, 90337, 138980, 173725, 180674, 298807, 347450, 361348, 451685, 597614, 694900, 903370, 1195228, 1494035, 1806740, 2258425, 2988070, 3884491, 4516850, 5976140, 7470175, 7768982, 9033700, 14940350, 15537964, 19422455, 29880700, 38844910, 77689820, 97112275, 194224550, 388449100]

約数ペア:

[(1, 388449100), (2, 194224550), (4, 97112275), (5, 77689820), (10, 38844910), (13, 29880700), (20, 19422455), (25, 15537964), (26, 14940350), (43, 9033700), (50, 7768982), (52, 7470175), (65, 5976140), (86, 4516850), (100, 3884491), (130, 2988070), (172, 2258425), (215, 1806740), (260, 1494035), (325, 1195228), (430, 903370), (559, 694900), (650, 597614), (860, 451685), (1075, 361348), (1118, 347450), (1300, 298807), (2150, 180674), (2236, 173725), (2795, 138980), (4300, 90337), (5590, 69490), (6949, 55900), (11180, 34745), (13898, 27950), (13975, 27796)]