2021559925

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2113}}^1$

素因数の和:2219

約数の個数: 72

約数和(自身を含む): 3227418432

約数和(自身を除く): 1205858507

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 71, 77, 175, 245, 275, 355, 385, 497, 539, 781, 1225, 1775, 1925, 2113, 2485, 2695, 3479, 3905, 5467, 10565, 12425, 13475, 14791, 17395, 19525, 23243, 27335, 38269, 52825, 73955, 86975, 103537, 116215, 136675, 150023, 162701, 191345, 369775, 517685, 581075, 750115, 813505, 956725, 1050161, 1138907, 1650253, 2588425, 3750575, 4067525, 5250805, 5694535, 7351127, 8251265, 11551771, 26254025, 28472675, 36755635, 41256325, 57758855, 80862397, 183778175, 288794275, 404311985, 2021559925]

約数ペア:

[(1, 2021559925), (5, 404311985), (7, 288794275), (11, 183778175), (25, 80862397), (35, 57758855), (49, 41256325), (55, 36755635), (71, 28472675), (77, 26254025), (175, 11551771), (245, 8251265), (275, 7351127), (355, 5694535), (385, 5250805), (497, 4067525), (539, 3750575), (781, 2588425), (1225, 1650253), (1775, 1138907), (1925, 1050161), (2113, 956725), (2485, 813505), (2695, 750115), (3479, 581075), (3905, 517685), (5467, 369775), (10565, 191345), (12425, 162701), (13475, 150023), (14791, 136675), (17395, 116215), (19525, 103537), (23243, 86975), (27335, 73955), (38269, 52825)]