199888937750

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1801}}^1\times {\mathrm{14321}}^1$

素因数の和:16170

約数の個数: 64

約数和(自身を含む): 386504262144

約数和(自身を除く): 186615324394

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 125, 155, 250, 310, 775, 1550, 1801, 3602, 3875, 7750, 9005, 14321, 18010, 28642, 45025, 55831, 71605, 90050, 111662, 143210, 225125, 279155, 358025, 443951, 450250, 558310, 716050, 887902, 1395775, 1790125, 2219755, 2791550, 3580250, 4439510, 6978875, 11098775, 13957750, 22197550, 25792121, 51584242, 55493875, 110987750, 128960605, 257921210, 644803025, 799555751, 1289606050, 1599111502, 3224015125, 3997778755, 6448030250, 7995557510, 19988893775, 39977787550, 99944468875, 199888937750]

約数ペア:

[(1, 199888937750), (2, 99944468875), (5, 39977787550), (10, 19988893775), (25, 7995557510), (31, 6448030250), (50, 3997778755), (62, 3224015125), (125, 1599111502), (155, 1289606050), (250, 799555751), (310, 644803025), (775, 257921210), (1550, 128960605), (1801, 110987750), (3602, 55493875), (3875, 51584242), (7750, 25792121), (9005, 22197550), (14321, 13957750), (18010, 11098775), (28642, 6978875), (45025, 4439510), (55831, 3580250), (71605, 2791550), (90050, 2219755), (111662, 1790125), (143210, 1395775), (225125, 887902), (279155, 716050), (358025, 558310), (443951, 450250)]