208781690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{467}}^1$

素因数の和:687

約数の個数: 64

約数和(自身を含む): 429287040

約数和(自身を除く): 220505350

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 181, 190, 247, 362, 467, 494, 905, 934, 1235, 1810, 2335, 2353, 2470, 3439, 4670, 4706, 6071, 6878, 8873, 11765, 12142, 17195, 17746, 23530, 30355, 34390, 44365, 44707, 60710, 84527, 88730, 89414, 115349, 169054, 223535, 230698, 422635, 447070, 576745, 845270, 1098851, 1153490, 1606013, 2197702, 3212026, 5494255, 8030065, 10988510, 16060130, 20878169, 41756338, 104390845, 208781690]

約数ペア:

[(1, 208781690), (2, 104390845), (5, 41756338), (10, 20878169), (13, 16060130), (19, 10988510), (26, 8030065), (38, 5494255), (65, 3212026), (95, 2197702), (130, 1606013), (181, 1153490), (190, 1098851), (247, 845270), (362, 576745), (467, 447070), (494, 422635), (905, 230698), (934, 223535), (1235, 169054), (1810, 115349), (2335, 89414), (2353, 88730), (2470, 84527), (3439, 60710), (4670, 44707), (4706, 44365), (6071, 34390), (6878, 30355), (8873, 23530), (11765, 17746), (12142, 17195)]