645589490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1787}}^1$

素因数の和:2211

約数の個数: 64

約数和(自身を含む): 1434633984

約数和(自身を除く): 789044494

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 397, 455, 794, 910, 1787, 1985, 2779, 3574, 3970, 5161, 5558, 8935, 10322, 12509, 13895, 17870, 23231, 25018, 25805, 27790, 36127, 46462, 51610, 62545, 72254, 116155, 125090, 162617, 180635, 232310, 325234, 361270, 709439, 813085, 1418878, 1626170, 3547195, 4966073, 7094390, 9222707, 9932146, 18445414, 24830365, 46113535, 49660730, 64558949, 92227070, 129117898, 322794745, 645589490]

約数ペア:

[(1, 645589490), (2, 322794745), (5, 129117898), (7, 92227070), (10, 64558949), (13, 49660730), (14, 46113535), (26, 24830365), (35, 18445414), (65, 9932146), (70, 9222707), (91, 7094390), (130, 4966073), (182, 3547195), (397, 1626170), (455, 1418878), (794, 813085), (910, 709439), (1787, 361270), (1985, 325234), (2779, 232310), (3574, 180635), (3970, 162617), (5161, 125090), (5558, 116155), (8935, 72254), (10322, 62545), (12509, 51610), (13895, 46462), (17870, 36127), (23231, 27790), (25018, 25805)]