257123790

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{3373}}^1$

素因数の和:3415

約数の個数: 144

約数和(自身を含む): 840045024

約数和(自身を除く): 582921234

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 30, 33, 35, 42, 45, 55, 63, 66, 70, 77, 90, 99, 105, 110, 121, 126, 154, 165, 198, 210, 231, 242, 315, 330, 363, 385, 462, 495, 605, 630, 693, 726, 770, 847, 990, 1089, 1155, 1210, 1386, 1694, 1815, 2178, 2310, 2541, 3373, 3465, 3630, 4235, 5082, 5445, 6746, 6930, 7623, 8470, 10119, 10890, 12705, 15246, 16865, 20238, 23611, 25410, 30357, 33730, 37103, 38115, 47222, 50595, 60714, 70833, 74206, 76230, 101190, 111309, 118055, 141666, 151785, 185515, 212499, 222618, 236110, 259721, 303570, 333927, 354165, 371030, 408133, 424998, 519442, 556545, 667854, 708330, 779163, 816266, 1062495, 1113090, 1224399, 1298605, 1558326, 1669635, 2040665, 2124990, 2337489, 2448798, 2597210, 2856931, 3339270, 3673197, 3895815, 4081330, 4674978, 5713862, 6121995, 7346394, 7791630, 8570793, 11687445, 12243990, 14284655, 17141586, 18365985, 23374890, 25712379, 28569310, 36731970, 42853965, 51424758, 85707930, 128561895, 257123790]

約数ペア:

[(1, 257123790), (2, 128561895), (3, 85707930), (5, 51424758), (6, 42853965), (7, 36731970), (9, 28569310), (10, 25712379), (11, 23374890), (14, 18365985), (15, 17141586), (18, 14284655), (21, 12243990), (22, 11687445), (30, 8570793), (33, 7791630), (35, 7346394), (42, 6121995), (45, 5713862), (55, 4674978), (63, 4081330), (66, 3895815), (70, 3673197), (77, 3339270), (90, 2856931), (99, 2597210), (105, 2448798), (110, 2337489), (121, 2124990), (126, 2040665), (154, 1669635), (165, 1558326), (198, 1298605), (210, 1224399), (231, 1113090), (242, 1062495), (315, 816266), (330, 779163), (363, 708330), (385, 667854), (462, 556545), (495, 519442), (605, 424998), (630, 408133), (693, 371030), (726, 354165), (770, 333927), (847, 303570), (990, 259721), (1089, 236110), (1155, 222618), (1210, 212499), (1386, 185515), (1694, 151785), (1815, 141666), (2178, 118055), (2310, 111309), (2541, 101190), (3373, 76230), (3465, 74206), (3630, 70833), (4235, 60714), (5082, 50595), (5445, 47222), (6746, 38115), (6930, 37103), (7623, 33730), (8470, 30357), (10119, 25410), (10890, 23611), (12705, 20238), (15246, 16865)]