243395225

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:378

約数の個数: 36

約数和(自身を含む): 322440300

約数和(自身を除く): 79045075

約数列:

[1, 5, 19, 25, 95, 149, 181, 361, 475, 745, 905, 1805, 2831, 3439, 3725, 4525, 9025, 14155, 17195, 26969, 53789, 65341, 70775, 85975, 134845, 268945, 326705, 512411, 674225, 1344725, 1633525, 2562055, 9735809, 12810275, 48679045, 243395225]

約数ペア:

[(1, 243395225), (5, 48679045), (19, 12810275), (25, 9735809), (95, 2562055), (149, 1633525), (181, 1344725), (361, 674225), (475, 512411), (745, 326705), (905, 268945), (1805, 134845), (2831, 85975), (3439, 70775), (3725, 65341), (4525, 53789), (9025, 26969), (14155, 17195)]