156638425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 216950400

約数和(自身を除く): 60311975

約数列:

[1, 5, 17, 25, 29, 71, 85, 145, 179, 355, 425, 493, 725, 895, 1207, 1775, 2059, 2465, 3043, 4475, 5191, 6035, 10295, 12325, 12709, 15215, 25955, 30175, 35003, 51475, 63545, 76075, 88247, 129775, 175015, 216053, 317725, 368561, 441235, 875075, 1080265, 1842805, 2206175, 5401325, 6265537, 9214025, 31327685, 156638425]

約数ペア:

[(1, 156638425), (5, 31327685), (17, 9214025), (25, 6265537), (29, 5401325), (71, 2206175), (85, 1842805), (145, 1080265), (179, 875075), (355, 441235), (425, 368561), (493, 317725), (725, 216053), (895, 175015), (1207, 129775), (1775, 88247), (2059, 76075), (2465, 63545), (3043, 51475), (4475, 35003), (5191, 30175), (6035, 25955), (10295, 15215), (12325, 12709)]