257363860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{863}}^1$

素因数の和:953

約数の個数: 96

約数和(自身を含む): 617766912

約数和(自身を除く): 360403052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 37, 52, 62, 65, 74, 124, 130, 148, 155, 185, 260, 310, 370, 403, 481, 620, 740, 806, 863, 962, 1147, 1612, 1726, 1924, 2015, 2294, 2405, 3452, 4030, 4315, 4588, 4810, 5735, 8060, 8630, 9620, 11219, 11470, 14911, 17260, 22438, 22940, 26753, 29822, 31931, 44876, 53506, 56095, 59644, 63862, 74555, 107012, 112190, 127724, 133765, 149110, 159655, 224380, 267530, 298220, 319310, 347789, 415103, 535060, 638620, 695578, 830206, 989861, 1391156, 1660412, 1738945, 1979722, 2075515, 3477890, 3959444, 4151030, 4949305, 6955780, 8302060, 9898610, 12868193, 19797220, 25736386, 51472772, 64340965, 128681930, 257363860]

約数ペア:

[(1, 257363860), (2, 128681930), (4, 64340965), (5, 51472772), (10, 25736386), (13, 19797220), (20, 12868193), (26, 9898610), (31, 8302060), (37, 6955780), (52, 4949305), (62, 4151030), (65, 3959444), (74, 3477890), (124, 2075515), (130, 1979722), (148, 1738945), (155, 1660412), (185, 1391156), (260, 989861), (310, 830206), (370, 695578), (403, 638620), (481, 535060), (620, 415103), (740, 347789), (806, 319310), (863, 298220), (962, 267530), (1147, 224380), (1612, 159655), (1726, 149110), (1924, 133765), (2015, 127724), (2294, 112190), (2405, 107012), (3452, 74555), (4030, 63862), (4315, 59644), (4588, 56095), (4810, 53506), (5735, 44876), (8060, 31931), (8630, 29822), (9620, 26753), (11219, 22940), (11470, 22438), (14911, 17260)]