199965025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 294088320

約数和(自身を除く): 94123295

約数列:

[1, 5, 13, 19, 25, 47, 53, 65, 95, 169, 235, 247, 265, 325, 475, 611, 689, 845, 893, 1007, 1175, 1235, 1325, 2491, 3055, 3211, 3445, 4225, 4465, 5035, 6175, 7943, 8957, 11609, 12455, 13091, 15275, 16055, 17225, 22325, 25175, 32383, 39715, 44785, 47329, 58045, 62275, 65455, 80275, 150917, 161915, 170183, 198575, 223925, 236645, 290225, 327275, 420979, 615277, 754585, 809575, 850915, 1183225, 2104895, 3076385, 3772925, 4254575, 7998601, 10524475, 15381925, 39993005, 199965025]

約数ペア:

[(1, 199965025), (5, 39993005), (13, 15381925), (19, 10524475), (25, 7998601), (47, 4254575), (53, 3772925), (65, 3076385), (95, 2104895), (169, 1183225), (235, 850915), (247, 809575), (265, 754585), (325, 615277), (475, 420979), (611, 327275), (689, 290225), (845, 236645), (893, 223925), (1007, 198575), (1175, 170183), (1235, 161915), (1325, 150917), (2491, 80275), (3055, 65455), (3211, 62275), (3445, 58045), (4225, 47329), (4465, 44785), (5035, 39715), (6175, 32383), (7943, 25175), (8957, 22325), (11609, 17225), (12455, 16055), (13091, 15275)]