81539538160

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{531133}}^1$

素因数の和:531266

約数の個数: 80

約数和(自身を含む): 201533484960

約数和(自身を除く): 119993946800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 101, 152, 190, 202, 304, 380, 404, 505, 760, 808, 1010, 1520, 1616, 1919, 2020, 3838, 4040, 7676, 8080, 9595, 15352, 19190, 30704, 38380, 76760, 153520, 531133, 1062266, 2124532, 2655665, 4249064, 5311330, 8498128, 10091527, 10622660, 20183054, 21245320, 40366108, 42490640, 50457635, 53644433, 80732216, 100915270, 107288866, 161464432, 201830540, 214577732, 268222165, 403661080, 429155464, 536444330, 807322160, 858310928, 1019244227, 1072888660, 2038488454, 2145777320, 4076976908, 4291554640, 5096221135, 8153953816, 10192442270, 16307907632, 20384884540, 40769769080, 81539538160]

約数ペア:

[(1, 81539538160), (2, 40769769080), (4, 20384884540), (5, 16307907632), (8, 10192442270), (10, 8153953816), (16, 5096221135), (19, 4291554640), (20, 4076976908), (38, 2145777320), (40, 2038488454), (76, 1072888660), (80, 1019244227), (95, 858310928), (101, 807322160), (152, 536444330), (190, 429155464), (202, 403661080), (304, 268222165), (380, 214577732), (404, 201830540), (505, 161464432), (760, 107288866), (808, 100915270), (1010, 80732216), (1520, 53644433), (1616, 50457635), (1919, 42490640), (2020, 40366108), (3838, 21245320), (4040, 20183054), (7676, 10622660), (8080, 10091527), (9595, 8498128), (15352, 5311330), (19190, 4249064), (30704, 2655665), (38380, 2124532), (76760, 1062266), (153520, 531133)]