20178909340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{9587}}^1$

素因数の和:9835

約数の個数: 96

約数和(自身を含む): 46390579200

約数和(自身を除く): 26211669860

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 191, 290, 380, 382, 551, 580, 764, 955, 1102, 1910, 2204, 2755, 3629, 3820, 5510, 5539, 7258, 9587, 11020, 11078, 14516, 18145, 19174, 22156, 27695, 36290, 38348, 47935, 55390, 72580, 95870, 105241, 110780, 182153, 191740, 210482, 278023, 364306, 420964, 526205, 556046, 728612, 910765, 1052410, 1112092, 1390115, 1821530, 1831117, 2104820, 2780230, 3643060, 3662234, 5282437, 5560460, 7324468, 9155585, 10564874, 18311170, 21129748, 26412185, 34791223, 36622340, 52824370, 53102393, 69582446, 105648740, 106204786, 139164892, 173956115, 212409572, 265511965, 347912230, 531023930, 695824460, 1008945467, 1062047860, 2017890934, 4035781868, 5044727335, 10089454670, 20178909340]

約数ペア:

[(1, 20178909340), (2, 10089454670), (4, 5044727335), (5, 4035781868), (10, 2017890934), (19, 1062047860), (20, 1008945467), (29, 695824460), (38, 531023930), (58, 347912230), (76, 265511965), (95, 212409572), (116, 173956115), (145, 139164892), (190, 106204786), (191, 105648740), (290, 69582446), (380, 53102393), (382, 52824370), (551, 36622340), (580, 34791223), (764, 26412185), (955, 21129748), (1102, 18311170), (1910, 10564874), (2204, 9155585), (2755, 7324468), (3629, 5560460), (3820, 5282437), (5510, 3662234), (5539, 3643060), (7258, 2780230), (9587, 2104820), (11020, 1831117), (11078, 1821530), (14516, 1390115), (18145, 1112092), (19174, 1052410), (22156, 910765), (27695, 728612), (36290, 556046), (38348, 526205), (47935, 420964), (55390, 364306), (72580, 278023), (95870, 210482), (105241, 191740), (110780, 182153)]