245747440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{74923}}^1$

素因数の和:74977

約数の個数: 40

約数和(自身を含む): 585306288

約数和(自身を除く): 339558848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 74923, 149846, 299692, 374615, 599384, 749230, 1198768, 1498460, 2996920, 3071843, 5993840, 6143686, 12287372, 15359215, 24574744, 30718430, 49149488, 61436860, 122873720, 245747440]

約数ペア:

[(1, 245747440), (2, 122873720), (4, 61436860), (5, 49149488), (8, 30718430), (10, 24574744), (16, 15359215), (20, 12287372), (40, 6143686), (41, 5993840), (80, 3071843), (82, 2996920), (164, 1498460), (205, 1198768), (328, 749230), (410, 599384), (656, 374615), (820, 299692), (1640, 149846), (3280, 74923)]