389614925

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{353}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 608003496

約数和(自身を除く): 218388571

約数列:

[1, 5, 7, 17, 25, 35, 49, 53, 85, 119, 175, 245, 265, 353, 371, 425, 595, 833, 901, 1225, 1325, 1765, 1855, 2471, 2597, 2975, 4165, 4505, 6001, 6307, 8825, 9275, 12355, 12985, 17297, 18709, 20825, 22525, 30005, 31535, 42007, 44149, 61775, 64925, 86485, 93545, 130963, 150025, 157675, 210035, 220745, 294049, 318053, 432425, 467725, 654815, 916741, 1050175, 1103725, 1470245, 1590265, 2226371, 3274075, 4583705, 7351225, 7951325, 11131855, 15584597, 22918525, 55659275, 77922985, 389614925]

約数ペア:

[(1, 389614925), (5, 77922985), (7, 55659275), (17, 22918525), (25, 15584597), (35, 11131855), (49, 7951325), (53, 7351225), (85, 4583705), (119, 3274075), (175, 2226371), (245, 1590265), (265, 1470245), (353, 1103725), (371, 1050175), (425, 916741), (595, 654815), (833, 467725), (901, 432425), (1225, 318053), (1325, 294049), (1765, 220745), (1855, 210035), (2471, 157675), (2597, 150025), (2975, 130963), (4165, 93545), (4505, 86485), (6001, 64925), (6307, 61775), (8825, 44149), (9275, 42007), (12355, 31535), (12985, 30005), (17297, 22525), (18709, 20825)]