254777806520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1\times {\mathrm{443771}}^1$

素因数の和:444276

約数の個数: 64

約数和(自身を含む): 593021399040

約数和(自身を除く): 338243592520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 463, 620, 926, 1240, 1852, 2315, 3704, 4630, 9260, 14353, 18520, 28706, 57412, 71765, 114824, 143530, 287060, 443771, 574120, 887542, 1775084, 2218855, 3550168, 4437710, 8875420, 13756901, 17750840, 27513802, 55027604, 68784505, 110055208, 137569010, 205465973, 275138020, 410931946, 550276040, 821863892, 1027329865, 1643727784, 2054659730, 4109319460, 6369445163, 8218638920, 12738890326, 25477780652, 31847225815, 50955561304, 63694451630, 127388903260, 254777806520]

約数ペア:

[(1, 254777806520), (2, 127388903260), (4, 63694451630), (5, 50955561304), (8, 31847225815), (10, 25477780652), (20, 12738890326), (31, 8218638920), (40, 6369445163), (62, 4109319460), (124, 2054659730), (155, 1643727784), (248, 1027329865), (310, 821863892), (463, 550276040), (620, 410931946), (926, 275138020), (1240, 205465973), (1852, 137569010), (2315, 110055208), (3704, 68784505), (4630, 55027604), (9260, 27513802), (14353, 17750840), (18520, 13756901), (28706, 8875420), (57412, 4437710), (71765, 3550168), (114824, 2218855), (143530, 1775084), (287060, 887542), (443771, 574120)]