400090880

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{6379}}^1$

素因数の和:6414

約数の個数: 108

約数和(自身を含む): 1114981560

約数和(自身を除く): 714890680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 3136, 3920, 4480, 6272, 6379, 7840, 8960, 12544, 12758, 15680, 25516, 31360, 31895, 44653, 51032, 62720, 63790, 89306, 102064, 127580, 178612, 204128, 223265, 255160, 312571, 357224, 408256, 446530, 510320, 625142, 714448, 816512, 893060, 1020640, 1250284, 1428896, 1562855, 1633024, 1786120, 2041280, 2500568, 2857792, 3125710, 3572240, 4082560, 5001136, 5715584, 6251420, 7144480, 8165120, 10002272, 11431168, 12502840, 14288960, 20004544, 25005680, 28577920, 40009088, 50011360, 57155840, 80018176, 100022720, 200045440, 400090880]

約数ペア:

[(1, 400090880), (2, 200045440), (4, 100022720), (5, 80018176), (7, 57155840), (8, 50011360), (10, 40009088), (14, 28577920), (16, 25005680), (20, 20004544), (28, 14288960), (32, 12502840), (35, 11431168), (40, 10002272), (49, 8165120), (56, 7144480), (64, 6251420), (70, 5715584), (80, 5001136), (98, 4082560), (112, 3572240), (128, 3125710), (140, 2857792), (160, 2500568), (196, 2041280), (224, 1786120), (245, 1633024), (256, 1562855), (280, 1428896), (320, 1250284), (392, 1020640), (448, 893060), (490, 816512), (560, 714448), (640, 625142), (784, 510320), (896, 446530), (980, 408256), (1120, 357224), (1280, 312571), (1568, 255160), (1792, 223265), (1960, 204128), (2240, 178612), (3136, 127580), (3920, 102064), (4480, 89306), (6272, 63790), (6379, 62720), (7840, 51032), (8960, 44653), (12544, 31895), (12758, 31360), (15680, 25516)]