388587920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{5297}}^1$

素因数の和:5448

約数の個数: 80

約数和(自身を含む): 1040611968

約数和(自身を除く): 652024048

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 131, 140, 262, 280, 524, 560, 655, 917, 1048, 1310, 1834, 2096, 2620, 3668, 4585, 5240, 5297, 7336, 9170, 10480, 10594, 14672, 18340, 21188, 26485, 36680, 37079, 42376, 52970, 73360, 74158, 84752, 105940, 148316, 185395, 211880, 296632, 370790, 423760, 593264, 693907, 741580, 1387814, 1483160, 2775628, 2966320, 3469535, 4857349, 5551256, 6939070, 9714698, 11102512, 13878140, 19429396, 24286745, 27756280, 38858792, 48573490, 55512560, 77717584, 97146980, 194293960, 388587920]

約数ペア:

[(1, 388587920), (2, 194293960), (4, 97146980), (5, 77717584), (7, 55512560), (8, 48573490), (10, 38858792), (14, 27756280), (16, 24286745), (20, 19429396), (28, 13878140), (35, 11102512), (40, 9714698), (56, 6939070), (70, 5551256), (80, 4857349), (112, 3469535), (131, 2966320), (140, 2775628), (262, 1483160), (280, 1387814), (524, 741580), (560, 693907), (655, 593264), (917, 423760), (1048, 370790), (1310, 296632), (1834, 211880), (2096, 185395), (2620, 148316), (3668, 105940), (4585, 84752), (5240, 74158), (5297, 73360), (7336, 52970), (9170, 42376), (10480, 37079), (10594, 36680), (14672, 26485), (18340, 21188)]